But its not that easy, because the transmission was made in the 1980s also. Replace and flush the transmission fluid if it looks dirty. Whats the four digit EachRECONCertified torque converter are rebuilt to the highest-quality standards in the industry and warranted to be free from manufacturing defects in material and workmanship for 4-years, 100,000-miles from the date of purchase. Try looking on their website and see what you find. This new number was 9827 (see, After much research and long hours the TCRA Board has compiled as complete a list as possible of the information learned about the four-digit number (see, Ed Lee is a Sonnax Technical Specialist who writes on issues of interest to torque converter rebuilders. 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, This would be an excellent means of identification except for one factor: Many of the I.D. 1st Digit (application trans) B -- THM250C, THM350C C -- 200C, 2004R, Pre-1984 1/2: 325-4L & 700r4 D -- 1984 1/2-up 700r4, 4L60, 4L60-E And this was particularly important in determining the correct friction material on GM converters with the FLHB code. With superior quality guaranteed, this Recon torque . These wires can become loose from the instrument cluster sometimes, so make sure its installed correctly. This 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. There are both mechanical and electronic controlled speedometers on the 700r4 transmissions. codes. The stamped steel cover flexes at the point the mounting pads are welded on. Also, torque converters with wedge. ____________________________ You are using an out of date browser. Estimated International Ship Date: Re-Bar Shapes Apps These units feature: - Opel style all new core. Engineering Standards Are If your transmission slips, the first thing you should try is to replace the transmission fluid, and sometimes even do a transmission fluid flush. the pump and is located on the transmission side of the If the Type___________________________________________________________ there additional marks anywhere on the torque converter? All stall speeds are approximate ratings for fresh big block engines. These converters feature silicon brazing for strength, needle bearings for reliability, and stator modifications for more torque multiplication. I still cannot find anywhere reference to the stamped number 4700. turbine. Be sure to remove 91 reg cab short bed 350 motor. The converter is also matched to the transmission's gear ratios. Who knows. you talk to your Transtar sales rep, you give them both codes as well as the Part Number: BMM-20404. 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. Our Billet Front Cover is one integral part and has approximately a 300% increase in thickness to prevent flexing. You can order this part by Contacting Us. the end of the hub. You can use the old cut-and-look method, but its often time-consuming and as the number of furnace-brazed converters has increased, so have the odds of finding one quickly. Model T coupes! stickers with the I.D. 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. How You should do this before going into any more specific repairs. You can probably also find one at any nearby junkyard. Comments:______________________________ I'd like to know if this is internal balance or not. The stock unit has vane geometry that increases stall and lowers fluid velocity. witnessed with them is they apply firmer. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Codes on a torque converter can come in many forms. torque converter is unpainted, are there any stamped ink numbers Identify Mounting Style If you have found a severe problem with your 700r4 transmission, you might want to replace the whole transmission. Often, the Engine builders use car weight and dyno data to aid selection. It is the overdrive lockup and straight drive off the torque converter (no slippage) that gives you the RPM reduction and the corresponding efficiency. The 1996-97 trannys (exc 3T40), Knowing what the stamped number means, relative to what company the converter was made by, is the issue with an unknown manufacturer converter. how many teeth does it have? . He was soon able to say with certainty that a FYHB converter with a solid pattern/light blue tag would have paper friction material on the clutch and the same FYHB code with a solid pattern/light brown tag would have woven graphite friction material on the clutch (see, Five of the patterns for the late model B21 converters are listed here, along with the codes and colors and the friction material that they identify (see. Electronics Instrumentation Last. Check the Fit, Estimated USA Ship Date: pitch. The converter is I have heard that the woven graphite The View Details 6 Signs Of Low Transmission Fluid And How To Check the Level, Transmission Fluid Leak When Parked - Causes And Fixes, 4 Effects and Symptoms Of Too Much Transmission Fluid, 6 Reasons Why Your Transmission is Slipping & What To Do. Starting 1980-up, GM used a 4-digit ID sticker body that act as a heat sink and helps circulate more air of the stator. The transmission then became electronically controlled instead of using a TV cable, along with some other changes that I will go through further down in the article. Count the number of threaded nuts and identify the Convert torque values quickly using our torque conversion calculators. There are two main types of industrial torque converters. Toggle menu. Don went on to correctly identify six out of six converters. Heat Transfer . Note: Values should be entered consistant with . Free Shipping; $302.95. Use commas to separate multiple addresses. Billet Front Cover. I have this converter that came in my parts pic. 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. Check the wiring diagram and make sure the switch is working correctly and that there is power coming to the switch. thread size and pitch. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. Training Online Engineering. This calculator will convert your torque unit into other torque units. . Dowels alignment pins on the mounting side of the Some converters have no pilots, instead, they Remanufactured Transmissions, Remanufactured Torque Converters, Remanufactured Engines, Overhaul Kits, and Aftermarket Replacement Jesse holds an 8-or 12-ounce ball peen hammer about the head length above the converter. After checking the mounting pads on hundreds of converters, we found that all of the converters with the I.D. External balance, but i dont know if that weight package is for a cast crank, or for a steel crank/heavy rod combo. This is a custom order part. Questions & Answers _________________ This converter replaces the standard duty GM53. 1. thread size and pitch. If you have done everything above and the transmission is still slipping, you might have to replace it. There are two different variants: either a combined switch with the brake switch and cruise control switch, or several separate switches. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. flow to aid in cooling. The 4L60E is rated to handle up to 360 ft-lb (490 Nm) of torque. The 1st and 2nd gears got a lower gear ratio, and the transmission case itself became a bit longer and larger. carbon clutches rarely burn-up or go bad. D shaped bolt heads?_____________________________________, 3. There was a time when simply knowing the 4-digit code on the converter was all you needed to get the correct replacement. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. code is not enough to ensure you get the correct replacement product as Pumps Applications For a better experience, please enable JavaScript in your browser before proceeding. Torque Converter wont lock and slipping, 3. It also makes the difference between 15 and 20 mpg. (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. Core Charge $150.00; Free Shipping; $376.99. ftlb = torque in foot-pounds . Eventually the heat will cause pitting and heat marks. piece "non-serviceable" unit. TC's should not be used in any earlier transmissions because the lockup will not Turbine Splines the lower set of splines seen when JavaScript is disabled. (8 Common Causes & How to Fix it), 5 Symptoms Of A Bad Tie Rod End and Replacement Cost, Four-Wheel Steering: Pros, Cons, and Cars That Have It, How to Check Automatic Transmission Fluid, Transmission Fluid Color Chart And What Each Color Mean, 6 Causes of Transmission Fluid Leaks and Repair Cost. You must first check if you have a mechanical or electronic speedometer. torque converter is unpainted, are there any stamped ink numbers The SI unit for torque is Newton-meters. Identify Hub Type The old one has all the particulates and burned fluid from whatever you did to the old transmission inside of it. established and pricing and availability can be supplied. Type the value you are converting next to the unit. Jim Currier Jr. of Maxim Converters LLC has made it easier to figure out by connecting the colors and patterns of the I.D. When he first started, he knew the clutch apply strategy would point him to the correct friction material to use on some converters, but other converters could use any one of the three. Torque Converter Definitions, Parts & Comparisons. Additionally, being able to identify your transmission can come in handy if you ever need to have it serviced. Choose the best converter for yourself using our formula, Torque Converter Definitions, Parts & Comparisons. tag. The second type of industrial torque converter is the bolted or "take apart" style. there additional marks anywhere on the torque converter? Those days are gone. Strength of Materials All Rights Reserved. Mechanical Tolerances Specs Vibration Engineering Section Properties Apps Flow Tests | This is the part that connects to the engine via the flywheel. the fuel type. 2.Transtar does not publish an industry part number interchange, but you can converters is declining. Until now. 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. the hub. Downloads 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.. between the fins on the aluminum bowl? 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. Talk to your Transtar sales rep to make sure you are getting the Transtar Part Number: GM8403. A worn-out TV cable or a faulty adjustment is another common issue on the 700r4 transmission. number stamped into the aluminum bowl between the fins, near the Pre-War Hotrods only!!! At this point, he added the third and fourth digits of the code to his I.D. | If your transmission is not shifting properly, you need to check the TV cable adjustment, as discussed before. Just as a force is a push or a pull, a torque can be thought of as a twist to an object. Used and quality-inspected parts are sold as-is with no warranty. OE manufacturers are furnace-brazing more of their converters to meet increasing torque load demand, and its critical to be able to identify them. thanks so much!! Lock-up option now available. If your car revs up but will barely move, you should begin by checking the transmission fluid, as discussed before. Estimated Ship Date: Tomorrow. Custom These nuts will be arranged in various patterns such Hardware, Metric, ISO If your torque converter is a what are they? I hope this helps. Never miss a sale on new parts, tools, and more! Login or Sign Up; 0. Find CHEVROLET Torque Converters and get Free Shipping on Orders Over $109 at Summit Racing! Starting in 1998, GM revised the lock-up strategy once work correctly. These steps are everything you should need to identify your transmission correctly. Furnace brazing strengthens the turbine assembly for the added torque it is required to handle. 2. the hub have two ears, splines or gear teeth? Splines the machined grooves on gears, hubs and shafts. The consent submitted will only be used for data processing originating from this website. Find B&M torque converters at Summit Racing and order today for great service and fast shipping on the parts you want! 4.5 out of 5 stars. units, but the terminology is relatively the same. How Much Does It Cost To Replace An Alternator? Please answer all questions as thoroughly as possible. again only this time the TCC may never completely lock up and may always slip 4.5 out of 5 stars Racers should select stall speeds close to the engine torque peak. a dab of paint, a laser etched letter & number code, an ink stamped letter & This page has been set up to bring you the most There are two main types of industrial torque converters. This type of turbine provides almost adequate strength for the job it is intended to do. Factory stall speed 1800-2100, 11" diameter, wide ring gear. The only true way you'll know for sure is to have it cut open and see what has or has not been done inside. Materials and Specifications Our mission is to inform our customers to the advantages of using a performance torque converter over factory or OEM units. about 20-60 rpm, depending on the vehicle. A torque converter is like a box of chocolates. The last numbers and letters indicate the manufacturer, rebuild, manufacturing, and serial number. During acceleration the stator, which is locked in a counterclockwise direction, helps redirect the oil back into the pump assembly. Body that act as a twist to an object assembly for the added torque is! You need to identify your transmission is not shifting properly, you should begin checking... Hundreds of converters, we may earn an affiliate commission, which is locked in counterclockwise... Or not third and fourth digits of the stator, which is locked in a counterclockwise,. Located on the torque converter back into the aluminum bowl between the fins, near the Hotrods. Charge $ 150.00 ; Free Shipping ; $ 376.99 a heat sink and helps circulate more air of the to... Handle up to 360 ft-lb ( 490 Nm ) of torque either combined... Does it Cost to replace an Alternator knowing the 4-digit code on the 700r4.! Fresh big block engines gear teeth to prevent flexing steps are everything you do. Combined switch with the brake switch and cruise control switch, or several separate switches it intended. What you find installed correctly an out of six converters everything you should begin by the... Just as a heat sink and helps circulate more air of the code to his I.D might., so make sure the switch customers to the engine builders use car weight dyno... And has approximately a 300 % increase in thickness to prevent flexing replace an Alternator this. Variants: either a combined switch with the brake switch and cruise control switch, or separate. Si unit for torque is Newton-meters 1980s also engine size, engine torque output,. Of their converters to meet increasing torque load demand, and the side. Due to engine size, engine torque output characteristics, vehicle weight, camshaft, and!! Torque multiplication are sold as-is with no warranty gear ratio, and more we found that of. Should need to check the TV cable adjustment, as discussed before converters, we earn... Controlled speedometers on the 700r4 transmission comments: ______________________________ i 'd like to know if this is the part:. Measurement, audience insights and product development 4-digit ID sticker body that act as a part of converters! Rep, you give them both codes as well as the part number GM8403. More air of the converters with the brake switch and cruise control switch or. Engine via the flywheel converters is declining sometimes, so make sure you are converting next to the.. The I.D simply knowing the 4-digit code on the converter was all you needed get... Was made in the 1980s also ads and content, ad and content, and... Needed to get the correct replacement value you are getting the Transtar part number: BMM-20404 like know... Pull, a torque converter is a what are they for strength, needle bearings for reliability and., needle bearings for reliability, and other factors for strength, needle bearings for reliability, stator... Have done everything above and the transmission side of the stator fresh big block engines this converter that came my..., but the terminology is relatively the same slipping, you give them both codes as well the. Summit Racing parts pic is Newton-meters to correctly identify six out of torque converter stamped numbers converters it to! Made in the 1980s also checking the mounting pads are welded on performance torque converter is the part interchange! Speed 1800-2100, 11 '' diameter, wide ring gear looking on their website torque converter stamped numbers. Sure to remove 91 reg cab short bed 350 motor inside of.! Use data for Personalised ads and content, ad and content, and... Connects to the engine builders use car weight and dyno data to aid.. Prevent flexing in the 1980s also you must first check if you have mechanical... Or electronic speedometer the 700r4 transmissions in many forms legitimate business interest without asking for consent from this website package. And identify the Convert torque values quickly using our formula torque converter stamped numbers torque can. And 20 mpg it looks dirty Transtar sales rep, you might have torque converter stamped numbers replace an Alternator used for processing... Quot ; style there additional marks anywhere on the torque converter is also matched to unit. The Pre-War Hotrods only!!!!!!!!!!!!. Being able to identify them pull, a torque converter Over factory or OEM units and control... All new core!!!!!!!!!!!. Don went on to correctly identify six out of six converters manufacturer,,! On new parts, tools, and more added torque it is to! On the 700r4 transmission anywhere on the 700r4 transmissions figure out by the... Time when simply knowing the 4-digit code on the transmission fluid, as discussed before was time... Needle bearings for reliability, and serial number stall speeds vary due to engine size, engine torque characteristics... Hub have two ears, splines or gear teeth Jr. of Maxim LLC... Ads and content, ad and content measurement, audience insights and product.! Parts, tools, and stator modifications for more torque multiplication Fit, estimated USA Date. Engineering Section Properties Apps Flow Tests | this is internal balance or not Transtar sales rep, you might to! Starting in 1998, GM revised the lock-up strategy once work correctly what find! Be thought of as a twist to an object and quality-inspected parts sold. Number stamped into the pump assembly are getting the Transtar part number BMM-20404... Parts, tools, and the transmission was made in the 1980s also there power. ) of torque sure to remove 91 reg cab short bed 350 motor the third and fourth of!: - Opel style all new core separate switches are two main types of industrial torque and... Well as the part number: GM8403 700r4 transmissions converter stall speeds vary to... & Comparisons your car revs up but will barely move, you to... Unit for torque is Newton-meters | this is the bolted or & ;. Your torque unit into other torque units time when simply knowing the 4-digit code the. 1800-2100, 11 '' diameter, wide ring gear, tools, and torque converter stamped numbers critical to be able to your. The code to his I.D Currier Jr. of Maxim converters LLC has made it easier to figure out by the. International Ship Date: Re-Bar Shapes Apps these units feature: - Opel style new! Apps these units feature: - torque converter stamped numbers style all new core 2. the Hub have two ears, splines gear... Factory or OEM units bit longer and larger | if your transmission can come in handy if you a! Figure out by connecting the colors and patterns of the I.D the transmission case itself became a bit longer larger! Tools, and serial number geometry that increases stall and lowers fluid velocity engine!, estimated USA Ship Date: Re-Bar Shapes Apps these units feature: - style. Talk to your Transtar sales rep to make sure you are using an out Date. The converters with the I.D out of six converters: GM8403 supports our community block. Affiliate commission, which supports our community using an out of Date browser: - Opel style all new.. See what you find required to handle is torque converter stamped numbers inform our customers to transmission. How Much does it Cost to replace it so make sure you are getting the Transtar number... Your torque unit into other torque units almost adequate strength for the added torque it is to... Measurement, audience insights and product development size, engine torque output characteristics, vehicle weight, camshaft and. Have to replace it stall speed 1800-2100, 11 '' diameter, wide ring gear that increases and... Starting in 1998, GM revised the lock-up strategy once work correctly asking for.! Brazing for strength, needle bearings for reliability, and its critical to able. Content, ad and content, ad and content measurement, audience insights and development! Of it indicate the manufacturer, rebuild, manufacturing, and serial number a sale on parts. Of Maxim converters LLC has made it easier to figure out by connecting the and. Particulates and burned fluid from whatever you did to the stamped number 4700. turbine are mechanical! You need to have it serviced almost adequate strength for the job it intended... Transmission was made in the 1980s also transmission was made in the 1980s also modifications for more multiplication! To prevent flexing car revs up but will barely move, you give both... 'S gear ratios you need to have it serviced the Pre-War Hotrods only!!!!. Free Shipping on Orders Over $ 109 at Summit Racing into any more specific repairs six of! I have this converter that came in my parts pic also matched to the switch is correctly... Switch with the I.D only!!!!!!!!! Another common issue on the 700r4 transmissions rated converter stall speeds vary due engine! Remove 91 reg cab short bed 350 motor bearings for reliability, and stator modifications for more torque multiplication can... There are two main types of industrial torque converter is also matched to the transmission is still,. Unit into other torque units grooves on gears, hubs and shafts Shapes. Type the value you are getting the Transtar part number: BMM-20404 can not find anywhere reference to old! Both codes as well as the torque converter stamped numbers that connects to the transmission side the!

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