P powerstroke7.3 New member Joined Jun 19, 2008 Messages 42 Jul 29, 2011 #1 Do you build 4r100 trans to hold 600hp? I looked but didn't see anything, I saw the 400hp build.
Jeff2 Comp Diesel Sponsor Joined Jun 27, 2006 Messages 407 Jul 30, 2011 #2 Not really my thing but you can buy a kit from suncoast and I will install it for you.