Looking for aftermarket parts to modify or upgrade your 1990 GMC K3500 with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories.

OUT OF STOCK YDGD60-4-35Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a h... Yukon Gear Dana 60 456 & Up Dura Grip Positraction Narrow 35Spl Abs Compatible 1988-1991 GMC K3500 Sierra $1,083.89 |
OUT OF STOCK YDGD70-3-35Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a h... Yukon Gear Dura Grip Limited Slip for Dana 70 (35 Spline/4.10 & Down/ABS Compatible) 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $1,249.89 |

IN STOCK - DROPSHIPS SL D60-30USA Standard Spartan Locker For Dana Spicer 60 w/ 30 Spline Axles / Incl. Heavy-Duty Cross Pin Shaft 1989-1991 GMC K3500 Sierra / Sierra SLE / Sierra SLX $845.89 |
IN STOCK - DROPSHIPS SL D60-35USA Standard Spartan Locker For Dana 60 Diff w/ 35 Spline Axles / Incl. Heavy-Duty Cross Pin Shaft 1989-1991 GMC K3500 Sierra / Sierra SLE / Sierra SLX $845.89 |
IN STOCK - DROPSHIPS SL XP-D60USA Standard Spartan Locker Replacement Cross Pin For Dana 60 1989-1991 GMC K3500 Sierra $56.89 |