Pardon my personal ignorance on the subject, but isn't launching @ 7k just asking for breakage? I would think that's awfully high for a street/strip car. I don't know, maybe I'm just too conservative but I would think 3500-4500 would be wiser.
. but I have the Axles upgraded to Moser axles
and it broke once but i think it was due to the axles tubing breaking with it. I will have the whole thing upgraded later on for a 9" diff.
Mustang 2013 GT - 11.832 @ 114.77 MPH
Mods: Tune, GT500 Mufflers, Hoosier Full Slick Tires, Weld Racing Wheels, BMR Lower control arms, Tremec T56 Magnum XL, Mcloed RXT Clutch with flywheel, Dynotech Engineering Aluminum drive shaft, Ford racing 4.56 rear end gears, Moser 31-Spline axles and True-track Eaton differentials. Cobra Jet intake Manifold, Ford Racing Monoblade TB, RevAuto CAI, SW Long tube headers with O/R X pipe. "Coming Soon" : Comp Cam Stage 3.