theblur98ss
11-09-2007, 07:42 PM
I'm swapping from a T400 to a 4L80E and I'm curious if the driveshaft will work or if I'll need a differant one.
Automatic Transmission - T400 driveshaft work on 4L80E
View Full Version : T400 driveshaft work on 4L80E
Vince @ FLT
11-10-2007, 09:38 AM
I believe the drive shaft will have to shortened. The 4l80 is a much longer trans. The yoke might have to changed depending on the combo's you are working with here as well. Good luck with the swap. Vince
theblur98ss
11-18-2007, 06:36 PM
Anyone know for sure?
8a8mfh
11-18-2007, 07:05 PM
If you have a short th400 with a 32 spline yoke you'll need a longer driveshaft but can reuse the yoke.
If you have a long th400 with a 27 spline yoke you will need to shorten the driveshaft and get a different yoke.
Short th400's all come with 32 spline. Long ones come with 27 splines. There are some long tail th400's with 32 spline outputs but they are quite rare.
If you have a long th400 with a 27 spline yoke you will need to shorten the driveshaft and get a different yoke.
Short th400's all come with 32 spline. Long ones come with 27 splines. There are some long tail th400's with 32 spline outputs but they are quite rare.