Looking for aftermarket parts to modify or upgrade your Chevrolet K20 with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories for your K20.
Whether you have a 1975 or 1986 Chevrolet K20 in Cheyenne to Silverado trim we have you covered. We have 37 differentials available to mod your K20. All parts have free shipping to the Continental US 48 States.
 IN STOCK RD114Air 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 10.5In 30 Spl Ff Gm 14 Bolt S/N 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,231.00 |
 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. 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $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. 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $1,091.00 |
 IN STOCK RD166Air 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 Dana60Hd 35Spl4.56Up S/N.. 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,231.00 |
 IN STOCK RD167Air 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 Dana60Hd 4.10&Dn S/N.. 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,231.00 |
 IN STOCK RD197With our improved two piece design available right across the range, along with the addition of forged gears and an industry leading five year warranty, ARB Air Lockers are now better built and better backed than ever before. Created to provide 100 percent traction on demand, without sacrificing any... ARB Airlocker Aam 925&950 33 Spl S/N 1982-1983 Chevrolet K20 Silverado 1982-1986 Chevrolet K20 Custom / Scottsdale 1985-1986 Chevrolet K20 Silverado $1,231.00 |
 IN STOCK - LOW RD221Air 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 28 Spl Gm8.5In 10Bolt Aam860 S/N *Does NOT Dropship* 1977-1980 Chevrolet K20 Custom Deluxe 1977-1981 Chevrolet K20 Cheyenne 1977-1983 Chevrolet K20 Silverado 1977-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,305.00 |
 SHIPS FROM MANUFACTURER RD234With our improved two piece design available right across the range, along with the addition of forged gears and an industry leading five year warranty, ARB Air Lockers are now better built and better backed than ever before. Created to provide 100 percent traction on demand, without sacrificing any... ARB Airlocker 10.5In 40 Spl Ff Gm 14 Bolt S/N 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,231.00 |
 SHIPS FROM MANUFACTURER RD235With our improved two piece design available right across the range, along with the addition of forged gears and an industry leading five year warranty, ARB Air Lockers are now better built and better backed than ever before. Created to provide 100 percent traction on demand, without sacrificing any... ARB Airlocker 10.5In 35 Spl Ff Gm 14 Bolt S/N 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,231.00 |
 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 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $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+ 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $792.89 |
 IN STOCK YDGGM14T-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 Positraction For 10.5in GM 14 Bolt Truck / 4.10 & Down 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,057.89 |
 IN STOCK YDGGM8.5-3-28-1The 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 8.5in w/ 28 Spline Axles 1977-1980 Chevrolet K20 Custom Deluxe 1977-1981 Chevrolet K20 Cheyenne 1977-1983 Chevrolet K20 Silverado 1977-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $799.89 |
 IN STOCK YDGGM8.5-3-30-1The 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 Positraction For GM 8.5in & 8.6in w/ 30 Spline Axles 1980-1980 Chevrolet K20 Custom Deluxe 1980-1981 Chevrolet K20 Cheyenne 1980-1983 Chevrolet K20 Silverado 1980-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $799.89 |
 IN STOCK YDGGM9.5-33-1The 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 9.5in w/ 33 Spline Axles 1979-1980 Chevrolet K20 Custom Deluxe 1979-1981 Chevrolet K20 Cheyenne 1979-1983 Chevrolet K20 Silverado 1979-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $899.89 |
 OUT OF STOCK 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 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $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 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $966.89 |
 IN STOCK YGLGM14T-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 10.5in 14 Bolt Truck w/ 30 Spline Axles 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $779.89 |
 IN STOCK YGLGM8.5-3-30The 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 For GM 8.5in & 8.6in / 30 Spline / 2.73+ 1980-1980 Chevrolet K20 Custom Deluxe 1980-1981 Chevrolet K20 Cheyenne 1980-1983 Chevrolet K20 Silverado 1980-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $1,031.89 |
 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 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $181.89 |
 IN STOCK - LOW YP MINSGM14T-30Yukon mini spools provide the traction of a full spool at an economical cost.... Yukon Gear Mini Spool For GM 10.5in 14 Bolt Truck 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $282.89 |
 IN STOCK - DROPSHIPS YP MINSGM8.5-28Mini spools are a low-cost traction option for vehicles looking for full-time lockup.... Yukon Gear Mini Spool For GM 8.5in w/ 28 Spline Axles 1977-1980 Chevrolet K20 Custom Deluxe 1977-1981 Chevrolet K20 Cheyenne 1977-1983 Chevrolet K20 Silverado 1977-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $164.89 |
 IN STOCK YP MINSGM8.5-30Mini spools are a low-cost traction option for vehicles looking for full-time lockup.... Yukon Gear Mini Spool For GM 8.5in w/ 30 Spline Axles 1977-1980 Chevrolet K20 Custom Deluxe 1977-1981 Chevrolet K20 Cheyenne 1977-1983 Chevrolet K20 Silverado 1977-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $183.89 |
 IN STOCK SL D44-30USA Standard Spartan Locker For Dana 44 Diff w/ 30 Spline Axles / Incl. Heavy-Duty Cross Pin Shaft 1975-1980 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $624.89 |
 IN STOCK - DROPSHIPS SL GM8.5-28USA Standard Spartan Locker For GM 8.5in w/ 28 Spline Axles / Incl. Heavy-Duty Cross Pin Shaft 1977-1980 Chevrolet K20 Custom Deluxe 1977-1981 Chevrolet K20 Cheyenne 1977-1983 Chevrolet K20 Silverado 1977-1986 Chevrolet K20 Scottsdale 1981-1981 Chevrolet K20 Deluxe 1981-1986 Chevrolet K20 Custom 1985-1986 Chevrolet K20 Silverado $582.89 |