A turbo 350 has only 3 gears. The 700R4 has 3 gears plus over drive and lock-up converter. And it is the same as a 400 turbo with overdrive.
The 700 has a lower first gear, and, with the overdrive will give better fuel economy. The 350 is a little stronger, and cheaper.
any Buick, olds or Pontiac turbo 350, turbo 400 or any overdrive tranny should bolt up to your engine.
If it has overdrive, then it is the 4L60 which is almost identical to the earlier 700R4. If it does not have overdrive, then you most likely have the Turbo 400 3 speed automatic.
If your speaking of the vacuum modulator for the transmission, they no longer use them on the transmissions with overdrive and electronics. The powerglide, turbo 350 and turbo 400 used to use them.
If it has overdrive it is most likely a 700R4 transmission, if it doesn't,it is most likely a 350 turbo.
I have an 86 and it has the A200R4 trans. If you have an overdrive position on your shifting column then that is what you have, if you only have a 3 speed then you probably have a turbo 350.
yes but the 350 turbo like the 400 turbo are vacuum run so you will need to tie into a vacuum line i put a turbo hydromatic 400 in my 1990 silverado that originally had a 700r4 it sucks not having overdrive but it will work also the output shaft is bigger so i needed a compatible transfer case in a 2wd this may not be a problem
If it's an automatic, most likely a Turbo 350.
None, TH stands for turbo-hydromatic, hence th350 or 350 turbo.
turbo 350 or 700r4 turbo 350 or 700r4
yes a 350 turbo converter will fit a 400 turbo and vice versa