best transmission
I'd call TCI or a reputable transmission builder. Many people build 4L80E trans that hold big power. Powerglide if your building a drag specific truck. You should give a description of your truck besides the power and your ultimate use and goals.
Staging Lane
Joined: Aug 2009
Posts: 75
Likes: 44
Jake supplied all my T400 parts years ago, I stopped building them a few years ago. I had no time with life getting in the way
Jake's a good guy
you dont need to go crazy for 1100 wheel hp. 300m input shaft, sonnax extreme duty billet fwd clutch hub, 6 friction and dual fed direct clutch, 300m billet main shaft. There are a few pump mods to keep it alive at the pressures you'll need to hold that power. PM me if you want more info. I build 4L80e's and Th400's for a living.
