I have an 87 fastback which came with, what I was TOLD a 4 speed manual trans (did not come with a motor/trans). I am planning on swapping the interior with that of a 97-03 grand prix with 04+ seats for dual power/heat. I will be switching ALL the wiring harnesses with that of the 97-03 grand prix for, which I already have. I want to use a 3800 series 2 supercharged engine, and cant decide what trans to use. I've always wanted a manual, but I know that an automatic would be much more simple in my case (if I'm not mistaken). So, I guess from the research I've done and information I've collected, I have the following results about trans. choices:
4 speed transmissions suck. they cannot handle the amount of hp I plan on achieving one day. These also appear to be near impossible to find in my area.
5 speed izusu transmission are about the same as the 4 speed, in terms of durability. also near impossible to find.
5 speed getrag transmissions are awesome (older models, 282 I believe? correct me if I'm mistaken) <-I would like more info on this in terms of parts needed. I know I will need a machined flywheel and 5 speed shifter. I have yet to notice info on cv joints. These transmissions and parts for them such as the shifter, are near impossible to find.
6 speed g6 f40 transmissions are also awesome, but after finding one, putting a deposit on one, I changed my mind. These need a LOT of custom parts to get to work, and I'm not to confident in this option.
Automatic 4t65eHD from donor car which the motor will come from. How difficult would it be to switch the car from a manual to an automatic? More so than, lets say, a 5 speed swap? What cvs would I use? These transmissions, as well as the engines are a dime a dozen in my area.
Which transmission would be best?
I literally have no one to help with me with any of this; I will be doing this on my own, besides what the internet and info everyone on here are willing to donate to me. So, I thank you in advance and appreciate all the help.
Building a dream...one bolt at a time.
[This message has been edited by ATH87fiero (edited 04-07-2014).]