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Looking for aftermarket parts to modify or upgrade your 1990 GMC K1500 with differential overhaul kits? At Tunersports.com we carry a huge selection of the top name brand performance differential overhaul kit parts and accessories for your K1500.
Whether you have a 1990 GMC K1500 in Sierra to Sierra SLX trim we have you covered. We have 5 differential overhaul kits available parts to mod your K1500. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS YK GM8.25IFS-AYukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality s... Yukon Gear Master Overhaul Kit For 98 and Older GM 8.25in IFS Diff 1988-1993 GMC K1500 Sierra / Sierra SLX 1988-1999 GMC K1500 Sierra SLE $406.89 SALE VIEW PRICE IN CART |
 IN STOCK - LOW YK GM9.5-AYukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality s... Yukon Gear Master Overhaul Kit For 79-97 GM 9.5in Semi-Float Diff 1988-1993 GMC K1500 Sierra / Sierra SLX 1988-1997 GMC K1500 Sierra SLE $478.89 SALE VIEW PRICE IN CART |
 IN STOCK - DROPSHIPS ZG GM8.25-373RUSA Standard Master Overhaul Kit For The GM 8.25in IFS Reverse Rotation Front Diff 1988-1993 GMC K1500 Sierra / Sierra SLX 1988-1999 GMC K1500 Sierra SLE $420.89 SALE VIEW PRICE IN CART |
 IN STOCK - DROPSHIPS ZK GM8.25IFS-AUSA Standard Master Overhaul Kit For The 98 and Older GM 8.25in IFS Diff 1988-1993 GMC K1500 Sierra / Sierra SLX 1988-1998 GMC K1500 Sierra SLE $349.89 SALE VIEW PRICE IN CART |
 IN STOCK - DROPSHIPS ZK GM9.5-AUSA Standard Master Overhaul Kit For The 79-97 GM 9.5in Diff 1988-1993 GMC K1500 Sierra / Sierra SLX 1988-1997 GMC K1500 Sierra SLE $407.89 SALE VIEW PRICE IN CART |