Looking for aftermarket parts to modify or upgrade your 1970 Chevrolet Blazer with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories for your Blazer.
Whether you have a 1970 Chevrolet Blazer in Base trim we have you covered. We have 18 differentials available to mod your Blazer. All parts have free shipping to the Continental US 48 States.
 IN STOCK RD116Air 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 Dana44 30Spl 3.92&Up S/N. 1969-1974 Chevrolet Blazer Base $1,091.00 |
 IN STOCK RD117Air 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 Dana44 30Spl 3.73&Dn S/N. 1969-1974 Chevrolet Blazer Base $1,091.00 |
 IN STOCK YDGD44-3-30-1The 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 Dana 44 / 30 Spline / 3.73 & Down 1969-1974 Chevrolet Blazer Base $799.89 |
 IN STOCK - LOW YDGD44-4-30-1The 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 Dana 44 / 30 Spline / 3.92+ 1969-1974 Chevrolet Blazer Base $792.89 |
 IN STOCK YDGGM12T-3-30-1Yukon Gear and Axles Dura Grip positraction limited slip differential provides smooth yet aggressive traction to give you the confidence and performance you need in a variety of terrains. The Dura Grip posi limited slip is engineered for long life, and is completely rebuildable. Dura Grips are built... Yukon Gear Dura Grip Limited Slip Differential for GM 12 Bolt 30 Spl 2.76-3.42 Ratio 1969-1974 Chevrolet Blazer Base $668.89 |
 IN STOCK YDGGM12T-4-30-1The 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 Positraction For GM 12 Bolt Car w/ 30 Spline Axles / 3.73+ 1969-1974 Chevrolet Blazer Base $799.89 |
 IN STOCK - DROPSHIPS YGLD44-3-30The 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 / Fits Dana 44 / 30 Spline / 3.73 & Down 1969-1974 Chevrolet Blazer Base $999.89 |
 IN STOCK - LOW YGLD44-4-30The 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 Dana 44 Grizzly Locker Replacement 1969-1974 Chevrolet Blazer Base $966.89 |
 IN STOCK - DROPSHIPS YP MINSD44-30Mini spools are a low-cost traction option for vehicles looking for full-time lockup.... Yukon Gear Mini Spool For Dana Spicer 44 w/ 30 Spline Axles 1969-1974 Chevrolet Blazer Base $181.89 |
 IN STOCK - DROPSHIPS YP MINSGM12-30Yukon mini spools provide the traction of a full spool at an economical cost.... Yukon Gear Mini Spool For GM 12 Bolt Car & Truck w/ 30 Spline Axles 1969-1974 Chevrolet Blazer Base $219.89 |
 IN STOCK SL D44-30USA Standard Spartan Locker For Dana 44 Diff w/ 30 Spline Axles / Incl. Heavy-Duty Cross Pin Shaft 1969-1974 Chevrolet Blazer Base $624.89 |
 IN STOCK - DROPSHIPS SL GM12-30USA Standard Spartan Locker For GM 12 Bolt Car & Truck w/ 30 Spline Axles 1969-1974 Chevrolet Blazer Base $646.89 |
 IN STOCK - DROPSHIPS SL XP-D44USA Standard Spartan Locker Replacement Cross Pin For Dana 44 1969-1974 Chevrolet Blazer Base $51.16 |
 IN STOCK - LOW SL XP-GM12USA Standard Spartan Locker 12 Bolt GM Spartan Locker Cross Pin 1969-1974 Chevrolet Blazer Base $51.16 |
 IN STOCK - DROPSHIPS YP FSD44-3-30DNYukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications.... Yukon Gear Dana 44 Steel Spool Replacement 1969-1974 Chevrolet Blazer Base $356.89 |
 IN STOCK - DROPSHIPS ZP MINSD44-30USA Standard Mini Spool For Dana 44 w/ 30 Spline Axles 1969-1974 Chevrolet Blazer Base $132.89 |
 IN STOCK - DROPSHIPS ZP FSD44-3-30DNUSA Standard Steel Spool For Dana 44 w/ 30 Spline Axles / 3.73 & Down 1969-1974 Chevrolet Blazer Base $278.89 |
 IN STOCK - DROPSHIPS ZP FSD44-4-30UPUSA Standard Steel Spool For Dana 44 w/ 30 Spline Axles / 3.92+ 1969-1974 Chevrolet Blazer Base $266.89 |