• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Which Tranny do I have in my '03 GT?

W

wrenchrat

New member
I recently aquired my Dad's old 2003 Grand Prix GT and I'm not sure which tranny it has (4T65E or 4T65-E HD). Is there a way for me to tell by the VIN number?
 


A NA 3800 runs the regular 4T65e.

The HD version is put in the supercharged cars. Only the diff, gear ratio and passenger side axle length. Not much but if you installed the wrong one it wouldn't work right.
 
You must log in or register to reply here.
Back
Top