i have a 70 bird with a pontiac 400 engine...i want to run a OD tranny...tired of the high revs @ freeway speeds...presently have a 400 with 3:08's...where can i find a OD tranny that will fit? thanks for any info you have...

 

you could always go to a TH400 with an OD, although that would be hella-expensive.

 

I think this just came up like yesterday......... 200-4r all the way, it's a BOP tranny after all.....get one thats built right, and it will last.



http://transmissioncenter.net/200-4R.htm


Edit: Yeah I already replied in the other thread down below entitled 70 TA 6 spd whatever...........And someone gave you more info on the swap. I was considering this exact same tranny.........If I had the $........



http://forums.performanceyears.com/6/ubb.x


Try this pontiac forum and search the performance street forum for the OD swap.........

Here's some conversion parts too........
http://www.shiftworks.com/firebird.htm#6881firebird

Swap info:
http://www.thepontiactransampage.com/200r4.html