I am hoping that I can swap out a transmission from a 94 Buick to my 96 bonneville but so far I have figured out that they have different stall speeds. Is there anything I can do to make it work?

yep, then I think you have to find a 96 or early 97 or maybe 95 with the 3.06. they changed the trannies A LOT during the 4t60e period.


94 buick probably has the 2.84. my olds does and well but it still much quicker than a lot of newer cars on the road.

Everything already said and you can swap out the 96 differential/differential sun gear/cover into the 94 to keep you original final drive ratio. Thats of course if the 96 parts are ok. The 2.84/3.06/3.33 FDR trannys all have a 1 to 1 chain drive, so it'* just a matter of changing the diff and sun gear and diff cover if it'* different.

94 and 95 will have the same pinout, not the 96.

94 and 94 only will fit your car i put one in my car a few weeks back

i know it sounds strange but call the dealer they will tell you the same

Hi Hans, Welcome to the club!

Like Mark said, check with the dealer or go to Car-part.com and see what your options are for replacement transmisssions. In the trunk of your car on top of the spare tire cover you should find a "build sheet" with your VIN (should match the one under your windshield and the partial one on your transaxle). This sheet will also be covered with three character codes referred to as RPO (regular production options). There you will find the gear ratio code for your transaxle. It should begin with an F or G. Go to techinfo here and choose specifications / rpo codes for a list of definitions.

The trans itself should also have a riveted metal tag on the rear passenger side with information describing the year, model and type of trans. The model is repeated in two large characters on the ID tag. The safest course is to use the same year, model and type of replacement trans. No troubles with compatibility then.

[edit: if you are not supercharged, car-part search indicates you have either an F17 (2.84) or FW2 (3.06) gear ratio, and that your trans option was used in 96 Pontiac, Buick, Olds and 97 Buick, if I did it right. Do check Car-part yourself and confirm the info w the dealer. Before you pay for a replacement trans, make sure the model and type match on the ID tags. Salvage yards have been known to try to sell trannies that don't match.]

Wow thanks a lot for the help

OK OK Hi Hanz, Welcome to the club! (Look at the time - I wasn't awake yet!)