Hello all. Im curious what you all think about the effect the 3 speed has on engine longevity as compared to 4 speed. It seemed to me that the 1988 3.8 motors lasted much longer than the TBI 3.8l, and I always wondered if a big part of it was the overdrive transmission, which kept revs down.
How difficult would it be to swap an AOD into this vehicle?
Thanks.
Russ
The later cars had an aod, so it wouldn't be hard.
Yeah, my '87 3.8 has an AOD.
Can't remember what a swap would take offhand.
Flexplate?
Driveshaft?
Kickdown rod?
Given the age of our cars, I'd do the swap for comfort (lower rpm on the highway)only . Doubt the swap would every pay for itself for gas savings and doubt the longevity difference will ever matter.
The 84 shop manual says; the AOD was an option for the 3.8L in '84.
Thanks all. Is crossmember same for transmission?
What is the past way to identify what parts I would need for this job? IE kick down, trans mount, etc.
Google, part numbers, auto parts websites.