Here's a close-up of the new transmission mount I'm using. The same flex plate is used on both the 6. That way is too pricey for me. The transmission was not exclusive to General Motors, as many luxury brands such as , , and many others made use of this transmission. One had a bolt on bell housing the other did not. Some will not be needed at all in any given situation.
Can you work on it inside? The 4L70E transmission is the same as a 4L65E with a speed sensor located in the pump. The rear of that short driveshaft is mounted in a support bearing with a second slip joint that is mounted on a second crossmember between the frame rails about 2' behind the transmission. All four of the overdrive transmissions allow for the use of a lockup torque converter, so there is no advantage for any of the transmission designs here. If you drive in cold climates, you can even get a remote oil cooler thermostat to help the oil heat up faster. It will hold parts in place longer under warmer conditions like summer heat and is for use with automatic or manual transmission assembly. I drove mine for about 4-5 years using an aftermarket controller.
I can also swap speedometer gears while I have the extension housing off so the speedometer is plausibly correct - the donor transmission will be geared for whatever car it came out of, and 4. My understanding is that these multiple piece driveshafts are done to prevent flexing and odd harmonic problems with long driveshafts, and to allow for smoother operation at more extreme input and output angles. Dramatically reduces friction and wear on metal parts and internal components. Fortunately, the early 1982-1987 donor vehicles are approaching 20 years on the road, and if they lasted this long, they are either going to last a while, or they have already been rebuilt and upgraded to the newer internal specifications. You can choose an aftermarket controller or the military one. July 2011 Turbo-Hydramatic Overview Manufacturer Production 1964—2012 Body and chassis 3-speed Related Chronology Predecessor Successor Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of developed and produced by.
I have tried to explain my thought processes as I figured out what to use and why, along with some possible alternate results if the situation was a bit different. That being said, a common fill volume is between 11-12 quarts for a stock transmission. Ok The 4l80 will require some kind of transmission controller because it is electronic. For a low-buck retrofit application, being forced to use a computer for the transmission is undesirable complexity. Various and Possibly Interesting Details This section is the grab bag of stuff that didn't really fit into other sections on this page. Overall this transmission was in production for 27 years, and to this day is commonly used for many aftermarket applications.
Some are redundant depending on how you choose to do the wiring and installation. After I was sure it was right, I gave it another once over with the wire wheel to get all the last touches of crud off. This could be as easy and bending some stuff to clear, or it could mean drilling some new mounting holes in the frame for that part of the shift linkage. I added a drain plug while I had the pan off. The problem is that this will leave the mount very close to the rear of the crossmember, with some of the back edge of the mount hanging off the crossmember. The center support, which is splined to the interior of the transmission's case, also provides a robust reaction point for first gear the gear train's reaction carrier is restrained from counter-rotating the engine in first gear by a whose inner race is part of the center support.
With the transmission already out, this is a trivial project - 6 bolts to remove to get it off, yank the flexplate, situate the new one, then tighten down the 6 bolts with a touch of Loctite for good measure. I do this by putting the vehicle on jack stands with the rear set of jack stands under the rear axle so the rear suspension is compressed to normal ride height. The linkage for the column is adjustable relative to the transmission, and I'm hoping I simply have it misadjusted. No matter what you need a new shifter. For the bellhousing bolt patterns, there are some oddities in here due to how the various engines worked their way into different models, the most interesting being the 3800 V6 engines.
Although the overall sentiment is that this is a very strong and durable transmission, some of the most common problems seen are clutch wear and hydraulic fluid leaks. Even better - I could now calculate the actual mounting pad location and overall length of the transmission based on the dimensions I had already found. Unless you replace the timing chain and sprockets to one from a 6. He is in the business of doing the upgrade. Much of this strength comes from the use of a cast iron center support to suspend the transmission's concentric shafts that join the clutch assemblies to the gear train. The final four pictures have excellent views of the mounting pad on the case as well as the mounting pad on the special extension housing that I will be using. Your Order can only be shipped via FedEx.
A slightly higher shipping charge will occur - We apologize for the inconvenience! Plugs into the transmission case connector from the outside and allows you to hook up your internal wiring as desired Transmission Connector Plug Crimp-on Lug Internal Connector 12103347 These are the metal connectors that you crimp onto the wire ends and then push into the plastic connector body. I'm sure a great many of those early year transmissions went for many miles without problems, but many did not. Note that I am not getting into swapping torque converters for this discussion - you would need to use a torque converter than matches your chosen transmission - easy as that. Parts Needed This is The Big Parts List. The computer controlled transmissions do offer greater control over things, but like converting from a carb to fuel injection, you pay more for that control and you have to put up with the electronics to get there. So my question is, how easy is it to swap these transmissions on a vehicle like mine? The Torque-Drive is a Manual shifted Powerglide on the column.
As the years progressed, even the transmissions in later model cars became computer controlled. The version, which followed shortly thereafter, was known as the Super-Turbine 400. I am attributing that to my errors with the tape measure in my haste to get mine measured so I could get back into a warm house, and I am simply using the published specs. This allows to to couple the engine directly to the gears in the transmission during stable highway driving and thus eliminate any slippage in the torque converter. This transmission eventually made its way into many of the truck applications for General Motors.