torque converter stamped numbers

Last. The first type is a steel welded type torque converter and is the most common. following definitions are used to describe industrial But you can be sure that all of the converters that do not dip between the dimples will not be furnace-brazed. 1996-up converters are built to be compatible with GM's PWM TCC apply strategy Today, Estimated USA Ship Date: Brand__________________________________________________________. The K-case 700r4 transmission was introduced due to the K stamp on the transmission case. If so, Never miss a sale on new parts, tools, and more! There was a time when simply knowing the 4-digit code on the converter was all you needed to get the correct replacement. Who knows. If there is a thicker cable coming out from the rear, you most likely have a mechanical speedometer. code. It does not handle the heat well and will eventually fail. Billet Front Cover. None of the above categories describe me. There are two main types of industrial torque converters. 91 reg cab short bed 350 motor. If the fluid seems okay, its time to check your TV cables adjustment between the transmission and the throttle body. A lot of people like the 700r4 because of its excellent durability. Structural Shapes thread size and pitch. Are you having issues with your 700R4 transmission or just looking for some information about it? This calculator will convert your torque unit into other torque units. Try to get as much information as possible about it, like the mileage, how many transmission fluid replacements were done, etc. Fluids Flow Engineering Transtar Part Number: GM8403. For the most up-to-date The GM converters have proven particularly problematic. Most GM automatic transmissions look almost identical. The transmission case has 16 bolts and a transfer case of aluminum. Your value gets instantly converted to all other units on the page. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. many total holes, including the ones being used, are there you taken the converter apart? At this time, a clear picture of You will have to check the next few letters, as well. It is based on the TH350 3-speed automatic transmission, and features an overdrive fourth gear that provides a 30 percent fuel economy improvement over the TH350. Today You must first check if you have a mechanical or electronic speedometer. If the problem persists, there might be a problem with your instrument cluster. describe. Furnace brazing strengthens the turbine assembly for the added torque it is required to handle. 6. the fuel type. available to us. If you can give me the size of the 2 weights, I can probably narrow it down for you. converter that aid in drive plate alignment. GM implemented a new TCC apply strategy. If you are looking for just any parts for your 700r4 transmission or a brand new transmission, I recommend you check it out on Amazon or eBay if you live in the USA or Europe. In other words, you want the torque converter to slip until RPM reaches the 2,400- to 2,600-rpm range. witnessed with them is they apply firmer. If we mentioned all car models this transmission was installed in, the list would be very long. The old one has all the particulates and burned fluid from whatever you did to the old transmission inside of it. Eventually the heat will cause pitting and heat marks. Below is a guide to help decipher it's meaning. different meanings. How These are often quite expensive, and you need some skills to replace these. You will find it on the rear side of the transmission on the passenger side. Comments:______________________________ torque converter is in a: The pilot is on the engine side of the converter. Convert torque values quickly using our torque conversion calculators. Are If An impeller that has not been in an oven will be straight across between the dimples (see. bored or stepped. If the fluid level is low, try to fill it up to see if it solves the problem. _______________________________________________________________. Ask a Product Question. If the The information Gary has gleaned about the TH400-style converters may well apply to other converter styles since GM tends to stick with processes once developed. Now with that being said, DTT also uses a blue . _______________________ The second number was 4742 and it was found on converters with a FYHB code on the I.D. tag, he was able to I.D. Threaded Holes individual threaded holes that are View Details BTE's 8" race torque converter is designed for most applications under 565 cubic inches. stickers with the I.D. Those days are gone. This would be an excellent means of identification except for one factor: Many of the I.D. A727 uses a torque converter with an internal clutch. If so, youll want to read on to learn more about the specs and features of this transmission, as well as how to identify it. Section Properties Apps 4.5 out of 5 stars Note whether or not your converter has a shroud, Would this torque converter (Part Number: 555-60402) work with a bone stock rebuilt olds 403 and a rebuilt TH350 in a 1979 Pontiac Trans Am? The K-case 700r4 transmission was designed to work with heavy-duty 44 trucks, and it is known as one of the best offroad transmissions. complete vehicle information to ensure you receive the correct product. I need to have, length, width and thickness. Spring Design Apps Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. Jesse holds an 8-or 12-ounce ball peen hammer about the head length above the converter. The 4L60E uses a 6.5 depth bell with 6 bolts for non-gen 3 LS applications and a 7 depth bell with 7 bolts for LS applications. and patterns can be described as: Identify External Features (However, we did find an exception to the rule that converters without a groove have standard threads there was a GM remanufactured converter with metric threads. A good rule of thumb on a street-driven car is to match converter stall speed to the engine camshaft's operating range (the point where the engine "gets on the cam"). BTE 8" Race Torque Converter. If your transmission is not shifting properly, you need to check the TV cable adjustment, as discussed before. In 1991, the 700r4 transmission was replaced by the popular 4L60 transmission. I think someone was guessing at the stall speed, most 11" converters stall between 2400-2800 RPMs depending on the application. The turbine is what drives the transmission input shaft. Engineering Book Store Buy a TH350/TH400 torque converter online from JEGS. Mounting Style and Pattern how the converter mounts to I have included a video to simplify the procedure of the TV cable adjustment. Flanged flange located on the end of the hub. the drive plate from the converter. Daccos latest catalog includes some handy furnace braze information in the. here for Application ID charts, FWD Transmission Gearing / Chain Information Table. As the turbine reaches the same speed, the stator begins to turn clockwise allowing fluid to easily pass into the impeller. _______________________________________________________________ The torque converter is a fluid coupling for automatic transmissions that allows the engine to transfer power to the transmission. bottom. Bearing Apps, Specs & Data Click here). The last way to identify if its a 4L60 or a 700r4 is to look at the transmissions rear for the Aux TV Cable or the wirings, as discussed before. You would also want to check your brake light switch to ensure its working correctly. GM Cars - GMC, Chevy/Chevrolet, Buick 1982-1990. assembly. ProTorques distinction as one of the most popular builders of customer performance torque converters is due not only to their unrivalled technology, but also to their ability to accurately match the correct unit for application. During the past year Sonnax sponsored a Help Crack The Code Contest, appealing to builders from around the country to share information gleaned from years of experience in the industry. Below is a guide to All manufacturers names, numbers, symbols and However, there are still a number of countries that use foot-pound as the unit of torque. thanks so much!! Part Number: BMM-20404. Does It weighs 133 pounds without transmission fluid. If converter stall speed is too low, the car will be lazy leaving the line; if too high, there'll be excessive high-gear slippageeither case adds time to your e.t. 2023, by Engineers Edge, LLC www.engineersedge.com Turbine Splines the lower set of splines seen when It is important to have hardened turbine splines to prevent the splines from stripping out. The converter is also matched to the transmission's gear ratios. This is the part that connects to the engine via the flywheel. | _____________________________________________________ Choose the best converter for yourself using our formula, Torque Converter Definitions, Parts & Comparisons. the drive plate. Starting 1980-up, GM used a 4-digit ID sticker Factory stall speed 1800-2100, 11" diameter, wide ring gear. If the wires are okay, its time to replace the sensor on the transmission. Any manufacturer, third-party, extended warranties, or limited lifetime warranties, should be handled through the manufacturer. Here is the terminology for describing the hub style: Identify Stator/Turbine Splines The many curved vanes force fluid to the outside of the converter, creating centrifugal force when spun by the engine. I have heard that the woven graphite If your car revs up but will barely move, you should begin by checking the transmission fluid, as discussed before. _______ ____________________________ Lubrication Data Apps woven-graphite TC clutch material. Notice the machined area where the clutch inside the converter will seal (see Fig. We have the right torque converter for your job, and with each unit backed by our unbeatable warranties, both you and your customer can enjoy the peace of mind that only Transtar delivers. #6 = 1397rpm typical 5.0L & 5.7L unit #7 = 1654rpm used in v-6, 5.0L & 5.7L I'd use the converter from the transmission you bought. Torque Converter Bolt Circle (in. Pictures Enlarge For Details. If you still have questions, you are welcome to ask any questions about the 700r4 transmission in our community. shop for your specific application and needs. This assembly is what mechanically links the turbine to the front cover. The Fora platform includes forum software by XenForo. The 700r4 and the 4L60 transmission use a bolt pattern of 16 bolts, so if the transmission looks like the picture and you can see 16 bolts, you most likely have a 700r4 or a 4L60 transmission. Stock up on Stock Replacement Parts! They are distinctly different from welded Stall Speed Rating RPM Range: 2,000 . Engineering Forum The 700r4 transmissions sometimes leak, which can cause low transmission fluid levels, so you should always check the level first to ensure its fine. Count and note the number of splines or gear teeth. Our mission is to inform our customers to the advantages of using a performance torque converter over factory or OEM units. Videos Design Manufacture Questions & Answers 2nd Digit (approx stall, depends on engine). is there visible damage to the internal parts? Torque converters with stamped stators are known. You can use the Thanks for any help. 4.5 out of 5 stars. The 4L60E is rated to handle up to 360 ft-lb (490 Nm) of torque. Remember to inspect the transmission closely before you make your purchase. Torque Converter Definitions, Parts & Comparisons. They can be a sticker, It features an integral bellhousing. Racers should select stall speeds close to the engine torque peak. Downloads Note the mounting Wasn't in a box, and don't see anything to identify it. Type___________________________________________________________ All components . Note: Values should be entered consistant with the indicated units: Copyright 2000 - JavaScript is disabled. 800 945-7644 customerservice@protorquetools.com. A torque converter is like a box of chocolates. They can be U.S. standard or metric. Straps metal straps that are riveted to the bottom of How Every converter builder knows there are three different types of friction material to choose among: paper, carbon and woven. Applications and Design RELATED: 4L60E vs 4L80E Differences: Swap & Information. number code, or an OEM part number in any of these formats. Shroud sheet metal cover attached to the top of the At this point, he added the third and fourth digits of the code to his I.D. And this was particularly important in determining the correct friction material on GM converters with the FLHB code. The TH350-C was the lockup torque converter version introduced in . Also, check the transmission fluid level and replace it if its worn. some codes are used on multiple torque converters. So how can you know which one of these you have? yes, what are they?_____________________________________________, 7. However instead of effecting the way air flows we are affecting the way the oil flows in order to get a different / desired effect. There are some videos on Youtube on how to replace the 700r4 converter. Max Gearbox Torque: 494 ft-lbs GM RWD Torque Converters Starting 1980-up, GM used a 4-digit ID sticker located on the converter body to help identify it. Street Rod torque converters from Hughes Performance are designed and manufactured for street rod enthusiasts needing a bit of an upgrade over their OE stock converters. Applications carbon filled clutch TC's on earlier trannys and the only experience I have These steps are everything you should need to identify your transmission correctly. Mounting Ring a metal ring welded onto the bottom of Next to the 11" it looks like numbers stamped into it. Stall speed 3000? Estimated Ship Date: Tomorrow. usually be solid, but sometimes they are hollow, flanged, center Hydraulics Pneumatics on the converter? size. Machine Design Apps The stamped steel cover flexes at the point the mounting pads are welded on. Pumps Applications There may also be an additional set of splines in the drive cover at the very bottom of the converter. system to cover as many converters as possible. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. there additional marks anywhere on the torque converter? Even though the 700r4 transmission is durable and reliable, they do sometimes fail. They are blue in color and if you go through their catalog, (Torque converter catalog look at page 65, part# CR70X and CR70X-S1) you can find your converter. _______________, If yes, To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Friction Engineering Really. many total holes, including the ones being used, are there Torque, moment, or moment of force is the unit of force to rotate an object about an axis, fulcrum, or pivot. (8 Common Causes & How to Fix it). Effective in-vehicle torque converter stall speed is defined as the rpm the engine can reach with the brakes locked and the transmission in gear before the drive wheels turn. When the impeller goes into the furnace braze oven, the impeller shell dips slightly between dimples. Holding the handle loosely, he lets the hammer fall. torque converters should be used in 1996-97 trannys. The second type of industrial torque converter is the bolted Count the number of threaded nuts and identify the Engine builders use car weight and dyno data to aid selection. Parts for Material Handling, Construction, and Agricultural Applications. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. The body of a welded converter is a one Try looking on their website and see what you find. RELATED: Transmission Fluid Color Chart (5 Different Colors). The safest way to determine if you have a 700r4 transmission is to look at the identification tag on the transmission. Very possible that it is a TCI converter, as they paint theirs black. Numbers that are stamped on the torque converter have what significance my old torque converter had 7s stamped on it and Ask an Expert Car Questions Chevrolet Repair Satisfied Customers Related Chevy Questions A company truck that I am trying to smog, 1996 Ford F250, not sure what the numbers mean but that looks like it is painted black. used a soft-apply (PWM) TCC strategy which was designed to soften the TCC apply Estimated Ship Date: Monday 4/17/2023. Identify Mounting Style Recon torque converters are warranted for 4-years/100,000 miles, whichever comes first. Does If you have done everything above and the transmission is still slipping, you might have to replace it. stickers of converters with the same I.D. This TH350/TH400 torque converter has a stall speed of 2000-2300 RPM and 500 horsepower to keep your vehicle running fast and smooth. They can be U.S. standard or metric. They can be U.S. standard or metric. D shaped bolt heads?_____________________________________, 3. The 700r4 transmission is not electronically controlled; it uses hydraulic pressure with a TV cable, which acts as a throttle position sensor to control the gear shifting. drilled and tapped directly into the bottom of the converter This torque converter features a billet piston replacement for the stamped OEM piston. descriptions are used for reference purposes only, and it is not implied that any part listed is the product of the manufacturer. If your torque converter is a carbon clutch TC's in earlier trannys that did not have PWM technology, however Factory stall speed 1800-2100, 11" diameter, wide ring gear. D shaped bolt heads?_____________________________________. I am interested in enhancing my vehicles performance. which welded industrial torque converter you have should be Email. See More Specifications information on GM Powertrain, check out the GM Media Center at: http://www.media.gm.com/division/powertrain/index.html, Home | Phenolic washers do not withstand the heat created by the torque converter clutch slippage. (See. The e-mail address that you entered is either incorrect or invalid. Slotted small areas of material removed on the end of I hope this helps. For a better experience, please enable JavaScript in your browser before proceeding. We also have common abbreviations and an easy-to-use conversion table available. Login or Sign Up; 0. what are they? It is best to have the torque converter out of the equipment, Studs threaded studs welded on the bottom of the Is _______________________________________________________________, 10.Additional Information or Serial Number___________________________________________________ Small blocks will vary 300 to 500 rpm lower. Whats the four digit Used and quality-inspected parts are sold as-is with no warranty. You must log in or register to reply here. It has a distinctive oil pan that is chamfered at the passenger side, rear corner. The easiest way to identify if you have a 700r4 is to raise your car and check the bolts around the transfer case. Until now. If you look down into the hub, the top set of gear splines are Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Flow Tests | Actual stall speed may differ due to engine combination, gear selection, and vehicle weight. Unfortunately, the torque converter can sometimes fail on the 700r4 transmission. Model T coupes! 2. oblong, square, or triangle shaped) welded on the converter You usually find the 700r4 transmission in GM cars like the Chevy Blazer, Suburban, Camaro, Corvette, Impala, and even in Oldsmobile Cars and many more. the lockup feel will not be the same. body that act as a heat sink and helps circulate more air *this is the shaft that inserts deepest into the torque you talk to your Transtar sales rep, you give them both codes as well as the You can tell by the way they've been welded to the converter, they are factory weights, installed by the OEM supplier to Chrysler. The population of bolted style converters is declining. However, I have heard that these All Rights Reserved. These nuts will be arranged in various patterns such The speedometer is not working properly, 4L60E vs 4L80E Differences: Swap & Information, Transmission Fluid Color Chart (5 Different Colors), Why is My Car Shaking? Make sure to adjust the TV cable with the videos help. Power Transmission Tech. TCI Competition Torque Converter Ultimate Streetfighter 3800 Stall 5R55 GT 2005-2010 $1,418.95 SEE DETAILS Performance Automatic C4 Rebuild Kit 1970-1981 $329.99 SEE DETAILS Master Rebuild Kit Mustang C4 Transmission 1970-1973 $135.95 SEE DETAILS Scott Drake Transmission Overhaul Kit Mustang C4 Transmission 1965-1969 $98.78 SEE DETAILS You never know what you're going to find. fins, dowels or ring gear. Actual item may vary. accurate and up to date information on GM transmissions that is Also know as the pump or driving member, the impeller is driven by the engine. preferably on a workbench where you can examine it closely. Image is a representation of this item. The recommended transmission fluid for the 7004r is Dextron VI, with a capacity of 11 Quarts. It's been painted, so at one time it's been apart, so was it taken apart to be re-stalled, or was it just a stock rebuild. If you have found a severe problem with your 700r4 transmission, you might want to replace the whole transmission. identifying marks, most notably on the engine side or "bottom" TC's should not be used in any earlier transmissions because the lockup will not Magnus is the owner and main author of Mechanicbase. Mounting Nuts threaded nuts (hex, round, rectangle, These custom race-style torque converters can be used with 30-spline turbo shafts, Lenco C-6 spline or 1-1/4-29 spline and the ATI Superglide 4 shaft. the converter that has threaded holes in it. Splines the machined grooves on gears, hubs and shafts. you taken the converter apart? Re-Bar Shapes Apps The consent submitted will only be used for data processing originating from this website. If the It can be pretty tough to see on older cars, so you may have to clean up your transmission to find it. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. 1. or "take apart" style. __________________________________________, 5. External balance, but i dont know if that weight package is for a cast crank, or for a steel crank/heavy rod combo. $1210.39 USD. Browse through the page and find the unit you want to convert from. body. here for Application ID charts, 4T65-E -- Grooved groove machined into the hub to accept a snap Finishing and Plating 8,162,612, hereby incorporated by reference. This design severely limits oil flow and does not optimize the angles leaving the stator and entering the impeller. Pressure Vessel A large cubic-inch engine will raise a given converter's stall speed. correct part on your order. Recon Certified Torque Converters feature a newly-refreshed paint color, proprietary to Transtar, known as Star Metallic Blue. Proud to be 100% Employee Owned and Operated. Hardware, Metric, ISO Replace and flush the transmission fluid if it looks dirty. Is Talk to your Transtar sales rep to make sure you are getting the GM Chip Burning | Due to its popularity, it is also quite effortless to find replacement parts for this transmission. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! Use commas to separate multiple addresses. Check the wiring diagram and make sure the switch is working correctly and that there is power coming to the switch. dual stators and therefore two sets of stator splines. Identifying Marks any numbers, Product should be thoroughly inspected prior to installation. the hub have two ears, splines or gear teeth? If you can see any signs of wear or damage on the TV cable, replace it! Manufacturing Processes Note how many stator and turbine splines. Custom Also know as the driven member, looks very similar to the impeller because of its shape and curved vanes. We and our partners use cookies to Store and/or access information on a device. Soon they had expanded their I.D. Enter your known torque value into the box associated with your known torque units and select "Calculate". which means that you can use the newer converter on the older trans, but not the 1952-59 Ford Social Group. Do you know how to tell the difference between a GM, His secret (also GMs secret for many years) is this: Theres an identification groove just above the welds that attach the mounting pads to the cover on all TH0400-style torque converters with metric threads. Units converted include: N-m to Kgf-cm, Ft-lbs to N-m, in-lbs to ft-lbs, etc. Identifying Aluminum Bolted Torque Converters. Pertaining to the TCC Clutch material: starting in 1996, groove did, in fact, have metric threads. During the past year Sonnax sponsored a "Help Crack The Code" Contest, appealing to builders from around the country to share information gleaned from years of experience in the industry. All rights reservedDisclaimer | ____________________, 8. Should You Repair, Rebuild, or Replace Your Car's Transmission? A heavy car with large diameter tires will raise effective stall speed as installed in the vehicle. The SI unit for torque is Newton-meters. You are using an out of date browser. ATI's line of Outlaw drag race torque converters are designed to meet the high horsepower demands of heads up style drag racing. We have to remember that these transmissions are old, and old things sometimes fail. a dab of paint, a laser etched letter & number code, an ink stamped letter &

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