The B-W OD transmission originated during the 1930s to solve a number of problems that existed on cars at that time. To understand the B-W OD, the features it has and how to properly drive it, one needs to understand the driving conditions that existed during the 1930s & 40s. The 4 gear system is the strongest. Unfortunately the chances of a 21st-century truck buyer who might be lucky enough to come across an overdrive-equipped Ford truck appreciating how lucky a find they have diminishes every year. It also includes troubleshooting, interchange information, and exploded views of assembly procedures. Locate the identification tag number. The "3" in the number refers to the specific series of transmission. Count the number of bolts on the transmission cover. The truck accelerates and the driver shifts into second gear. Should 1st gear be required earlier, reduce the car speed to below 30 m.p.h. There are no electronic sensors or switches as found in modern transmissions. A quick way to confirm that your transmission is a Borg Warner and what vehicle it was designed for, is to locate the identification number stamped into the metal tag bolted onto the tail housing, according to 5speeds.com. Once you have the identification number you can access one of the two Web listed in the Resources section of this article to find out more information about the transmission. The biggest and heaviest duty version is the T-85 with the R-11 overdrive. As the gears move faster or slower, pressure of the fluid increases or decreases in the case. This is performed by two bands, two multi-disc clutches and a one-way clutch. Power comes from the fuse through the relay, which is then activated whenever it is grounded.Power from the relay to the governor does pass through the kick down switch. By selecting L from stationary, or before an upward gear change into 2nd gear, the transmission will become locked in 1st gear. BorgWarners Variable Bleed Solenoid (VBS) is a cost effective option for signal level proportional control applications. It is too slippery and the overdrive sun gear will not engage. All models follow a quadrant which has six stations. (48 k.p.h.) EV Transmissions - BorgWarner Owners have sometimes rewired their systems and by-passed the governor by adding a manual switch to turn the system on & off. All B-W OD transmission set ups (from all manufactures in all years) used a non-synchronized first gear. and effect a "kick-down" gear change. This is a cylinder shaped device that is driven by the speedometer gear with ONE wire coming out of it. The company maintains production facilities and technical systems at 93 sites (as of June 6, 2022) in 22 countries worldwide and has around 49,000 employees. Dont worry the R-10 is still plenty strong for most applications. However a properly functioning B-W OD does NOT freewheel at speeds above 28 mph. I get one or two calls a day from potential customers looking for a solenoid. Owners manuals from that time suggested that around town you could (should?) To make it possible for a low power 1930s-40s engine to climb hills and haul loads manufactures installed very low rear axle ratios. This means that while the engine can drive the wheels, when the vehicle coasts, no power is fed back to the engine. Once you have the identification number you can access one of the two . In December 2022, it was announced BorgWarner had acquired the Brgg-headquartered company, Drivetek AG - specialists in engineering and product development services for inverters, electric drive solutions, and power electronics. OEM Part Number. (There could also be a wire connector between the governor and the OD harness. I have a 1964 F-100 with 292 OD that I have used as a driver for over 25 years. And DO NOT use modern synthetic gear oil in the overdrive transmission. It needs to go a transmission specialist for a rebuild. The Borg-Warner overdrive transmission combines both mechanical and electrical components. This is only found on the T10. The upper bolt on the solenoid secures the bracket that holds the outer cable. You may not need the entire number stamped on the metal tag to determine whether or not you have a Borg Warner transmission. [6] As a result, the three-speed overdrive transmissions that nobody wanted way back when are now more popular than ever. Email: customerserviceIAM@borgwarner.com Learn more: Exhaust Gas Management REMAN EGR valves Gasoline Fuel Systems Especially during World War II with gas rationing in effect, anything that increased mileage was welcome. Prior automatic transmissions were used with the small sixes in the US in the late 50s and early 60s, but the heavy internal components of the early automatics were detrimental to economy, the main reason a lighter automatic transmission was developed. Later production models made a running change to the Borg-Warner 40 and 50 Series units to fall into product supply lines as with Ford Australia, The Rootes group (United Kingdom) (later Chrysler UK), "A Brief History of Ford Automatic Transmissions", https://en.wikipedia.org/w/index.php?title=Borg-Warner_35_transmission&oldid=1081733361. This usually indicates a higher torque load capability, but may refer to other variations that may not increase torque rating. The BW-35 was offered to European automobile producers where it was widely used. R-10 was the standard overdrive model and the most common. The freewheeling feature also makes clutchless shifting possible. We carry the V elvet Drive 71c and Velvet Drive 72c for your inboard boat. The experts all agree that cleanliness is the most important factor during installation, and the lack thereof is the most common problem that leads to bearing failure. Knowing what numbers mean Borg Warner might save you a trip to the computer. $159.77 $179.95 . compare compare items. BorgWarner provides compact and highly efficient solutions reducing fuel consumption and the associated CO2 emissions, including exhaust gas recirculation (EGR) modules, valves and coolers. If you have good power on both sides of the fuse on the OD relay, the next check is made under the vehicle. No clashing shifts into first; No clutch necessary to shift into second; Automatic shift into second OD around town. Her publications include numerous regional newspapers as both an on-staff and freelance reporter, for which she earned several writing awards from the Michigan Associated Press. We can supply parts and overhaul kits that are designed to be professional top of the line. Most every automotive manufacture offered the B-W OD set up as an option on their cars at one time during their production life. Parts Repair & Rebuild Services - Modern Driveline All things are a compromise) All these factors need to be considered when outfitting a vehicle with a B-W OD transmission. The M-36 was introduced in 1965. Velvet Drive Inline Transmissions | Velvet Drive 71 & 72 Series Inline The OD cable and dash bracket. In 1950 Charles Davis stepped down as president, and his friend Roy Ingersoll took over. It then becomes ever more likely that the marvelous overdrive set up would be removed and the truck converted to another transmission typea sad loss indeed. Begin your diagnosis by checking for power at both sides of this fuse. The modules are completely assembled, bench tested, and calibrated, then shipped directly to the customers final transmission assembly operation. super-novass (15,295) 100%. Choosing the right motor oil for your engine is an essential part of engine building, as it can significantly impact your engines longevity, efficiency and power output. To try to start out from a standing start in overdrive would create an incredible strain on the driveline is certain to damage something or at least result in increased clutch wear. BorgWarner Part Number. Content for engine professionals and enthusiasts. The T-10 transmission is one of the most popular transmissions in asphalt racing. R-11 was for heavy-duty applications, including the bigger, heavier cars like Packard and Lincoln, and higher horsepower applications in later years. [8], BorgWarner has close links with the Indianapolis 500. Popularity of the B-W OD lessened over its long production life, especially after availability of fully automatic transmissions, but it still remains the most versatile transmission ever put into a vehicle. This happens as long as the vehicle is below 28 MPH (or the system has no electrical power) the OD will not engage. [7], The company was formed in 1928 as Borg-Warner Corporation. When this article refers to "M-3x" it refers to all models. With the three-speed overdrive transmission there is plenty of power for driving around town, and on the highway the engine rpms will drop about 33 percent compared to a non-overdrive car. While it seems like it might be difficult to add or repair a factory type Borg-Warner overdrive system, once you learn how to use the system to its maximum potential and versatility you will find it well worth the effort. Modern honing techniques are as much a performance concern as they are part of engine design, and thats thanks to the much tighter tolerances and specifications engines need these days. (This is how a Borg-Warner OD transmission accomplishes an overdrive ratio). This article also applies to variationsthe M-36 and M-37. REFERENCE : TRANSMISSION I.D. The T18 is the improved successor to the T98 transmission. After learning of Als background I knew I had found my. Al later traveled for the Borg-Warner Co., conducting classes for the technicians on how the overdrive transmissions worked and how to troubleshoot them. The mechanical components are very stout and as long as the transmission AND THE OVERDRIVE unit is filled with gear oil (see maintenance below) the only problems should be electrical, which are very easy to trouble shoot.Take an OD truck out for a test drive with the OD cable pushed in, if it freewheels above 28 mph (and you dont feel the automatic shift) the trans is OK but there is an electrical problem. When they reach the magic speed of 28 mph, the wire going into the governor is grounded. Doing this is as fool hardy as by-passing the neutral safety switch on an automatic transmission.So as you slow down below 28 mph you are automatically put back into second gear direct drive. However all this cable does is lock out the entire system. In the late 1940s the standard method used to control the engagement of the overdrive was by holding the sun gear stationery. R-11 was for heavy-duty applications, including the bigger, heavier cars like Packard and Lincoln, and higher horsepower applications in later years. With Chevy/GMC Square Bodies all the rage, American Powertrain the nations leading distributor of TREMEC transmissions, is introducing a Square Body Chevy/GMC 44 kit for the TREMEC TR-4050 5-speed, 4WD manual transmission designed to fit 1973 1987 pickups and SUVs including Suburbans, Jimmys and Chevy Blazers. Meanwhile, it is usually the relay, kickdown and the solenoid that need attention, and they are the easiest to fix, as they are all external parts. Clipboard(0) Please select manufacturer, transmission or type or enter a part number. This is a perfect ratio for in town use. As an FYI all the electrical components for ALL Borg Warner OD transmissions are interchangeable. They never built a B-W OD transmission with a synchronized first gear. The LS engine is known for its cylinder heads, and there are tons of options available to upgrade the factory components. Features and Benefits Wide range of gear reduction ratios: 2.12, 2.68, 3.05, 4.05 Rated input torque: 350 Nm peak Electronic park pawl actuation Adaptable motor flange interface If however you have allowed the transmission to engage the OD in second (backing of the gas) then depressing the clutch is necessary to shift from 2nd to 3rd. There is the normal plug/hole in the side of the transmission but ANOTHER plug/hole is in the tail shaft area. The cable must be removed completely to free it up. A big nut behind the cable secures it to the bracket under the dash. Its not so much the connecting rod length that matters as much as it is the correct piston pin height. For more technical Information on the Borg Warner Overdrive transmission, to buy new Borg Warner overdrive transmission parts or for questions, feel free to contact me at www.fifthaveinternetgarage.com. Understanding Borg-Warner's R-10/R-11 Overdrive Transmissions The next logical step was to offer a rebuild service for solenoids, among the most common wear items. (Especially with the ladies). The engine will rev up and when the pedal compresses the kick down switch, it will suddenly and quickly shift back into direct drive. It protruded through a hole in the floor and was activated by the back of the gas pedal. Search by Number. In the simplest terms, overdrive acts like a super-high gear that is intended to be used only at freeway speeds to lower the engine revolutions, lower engine wear and lower both engine oil and fuel consumption.