Rear Differential Problem

[RockstarCondoms]

I have a 2000 4Runner SR5 Sport (hood scoop opened), 5-speed manual transmission with TRD supercharger, TRD supercharger belt tensioner, TRD cat-back exhaust, TRD air filter (air box opened), and TRD brake pads. I have Toyo Proxes S/T tires (+ 1 size) on 16" five spoke OEM rims.

I have over 325 hp and over 350 ft