black helicoptors out.
My theory is the torqe of you car has twisted/bent the main shaft just every so slightly causing the wine, next syncros go out from being just a little off center. Next rebuild that don't last 100 miles or new and good to go until the main shaft is twisted/bent again after so many heat cylces/ hard runs
2014 Black 3.7 6M. 20 inch black bullets, Pypes Axle back, matte black super snake stripes, next up JLT intake.
2011 Mustang 5.0 Race Red. gone and was sick
2011 Mustang 3.7, gone sold 3 times since, that I know of.