My dually weighs 8,040 pounds with my topper. . It normally does 2. 0 60' times with a best of 1. 96. I decided to try the torque management delete Crazy Larry program and broke my output shaft on the first run. I now have a billet input and output. I should have but didn't get the intermediate. Can I safely do hard launches without breaking the intermediate. It runs 13. 4's with a 2. 0 60' with the TM delete on. . I'd really like to try turning the TM delete off and shoot for a 1. 8 60' to get my ET closer to the 12. 99 number. . Does anyone with a fairly heavy truck have experience on when the intermediate will break? I've had billet shafts for a long time, though I've just been scared to break it again. . I was hoping to find others that are launching hard and going faster with trucks that are just as heavy or heavier and see if they are breaking. Thanks. .