67Rocket

Do Jetaway and TH 400 trans. both have 32 spline output shafts? Thanks

svnt442

No. It's the same size as a TH350.

joe_padavano

To clarify, the Jetaway output shaft is the same as a TH350. The TH400 output shaft (and driveshaft yoke) is larger.

svnt442

Thanks Joe. I suppose I could have been a little clearer on that.
All I did was look up the output shaft seals for the transmissions to determine what size they were. The output shaft seal Jetaway and the TH350 is 1.502" ID, and the TH400 is 1.887" ID.

joe_padavano

Yes, techniques like that are how I usually find out if parts are the same or not. As for GM transmissions, every Oldsmobile RWD trans (auto and manual) use the same output shaft EXCEPT the TH400 and the M22 Rockcrusher.