I have a 2004 LB7 with the allison and I heard someone mention adding a 6th gear to my tranny. Is this doable? IF it is doable can the 6speed tranny handle 500+ HP. I am new to this site so if this has been discussed I apologize!
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!