Im building a 700ish whp ext cab 4wd, kb turbo kit, built 6.0, s475, 4l80 etc but i need help with a rear end. I planned on putting a true trac in my 8.5 but now im second guessing it. I want this truck to run low 7s 1/8th mile, anyone had one and will it hold up a while?

 

Mine is 2wd with a Yukon locker and has held up good so far. Of course I have traction issues that are helping it live im sure.