2 Attachment(s)
2007 Frankenstein's Monster Grand Prix. 3.29 gear help...
I finally have my car all back together. Took for a drive and the transmission shifting just feels horrible.
The vehicle was originally a 2007 Base Model. Trans had a 3.05 final drive and I swapped the HD Diff into the car and my research tells me that changes the final drive to 3.29. Please correct me if I'm wrong.
I changed the gear/tire wizard to 3.69, but it seemed like it was worse and wasn't shifting right.
adding my last scan and tune. hopefully someone can chime in and help me out.
I have new valve springs in and i am able to shift over 6k. new springs new cam.
Attachment 84348 Attachment 84349
Mods:
Headers
vs cam
105 springs
double roller
42.5 injectors
3.4 pulley