Looking for aftermarket parts to modify or upgrade your GMC Sierra 3500 HD with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories for your Sierra 3500 HD.
Whether you have a 2007 or 2019 GMC Sierra 3500 HD in Base to WT trim we have you covered. We have 5 differentials available to mod your Sierra 3500 HD. All parts have free shipping to the Continental US 48 States.
 IN STOCK RD139Air locker locking differentials allow you to tackle the toughest terrain. The worlds premier traction aid, ARB air lockers keep you moving in all conditions.A complete air locker kit: replacement differential, activation switch, solenoid valve, air line and bulkhead fittings.... ARB Airlocker 11.5In 30 Spl Aa&M S/N. 2007-2007 GMC Sierra 3500 HD SLE / SLT / WT $1,158.00 |
 IN STOCK YDGGM11.5-30-1The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence and performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction.... Yukon Gear Dura Grip For GM & Chrysler 11.5in / 30 Spline 2007-2014 GMC Sierra 3500 HD WT 2007-2019 GMC Sierra 3500 HD SLE / SLT 2011-2019 GMC Sierra 3500 HD Denali 2015-2019 GMC Sierra 3500 HD Base $1,499.89 |
 IN STOCK YGLGM11.5-30The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.... Yukon Gear Grizzly Locker For GM & Chrysler 11.5in w/ 30 Spline Axles 2007-2014 GMC Sierra 3500 HD WT 2007-2018 GMC Sierra 3500 HD SLE / SLT 2011-2018 GMC Sierra 3500 HD Denali 2015-2018 GMC Sierra 3500 HD Base $1,599.89 |
 OUT OF STOCK YGLGM11.5-38The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.... Yukon Gear Grizzly Locker For GM & Chrysler 11.5in w/ 38 Spline Axles 2007-2014 GMC Sierra 3500 HD WT 2007-2015 GMC Sierra 3500 HD SLE / SLT 2011-2015 GMC Sierra 3500 HD Denali 2015-2015 GMC Sierra 3500 HD Base $1,899.89 |
 IN STOCK - LOW YP FSGM11.5-38Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications.... Yukon Gear Spool For GM & Chrysler 11.5in / 38 Spline 2007-2014 GMC Sierra 3500 HD WT 2007-2015 GMC Sierra 3500 HD SLE / SLT 2011-2015 GMC Sierra 3500 HD Denali 2015-2015 GMC Sierra 3500 HD Base $1,599.89 CLEARANCE VIEW PRICE IN CART |