Your slipper is too tight. Loosen the slipper so it always give before the diff does and your diff should last months.
TLR/Losi Team Driver
TLR/Losi | Tekin | Venom | DE Racing | Spektrum | Exotek | JBRL | Kolor Koncepts | OC/RC |Sticky Kicks | Imagine It Graphics | Casper-RC.com
TLR 22 3.0, TLR 22SCT 2.0, TLR 22-4 2.0, TLR Ten-SCTE 3.0, Spektrum DX6R
WWW.CASPER-RC.COM TLR and Tekin setups