1966 GMC K15/K1500 Pickup Differential Lock Assemblies

Your 1966 GMC K15/K1500 Pickup might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Differential Lock Assemblies you desperately need.

We currently carry 13 Differential Lock Assemblies to choose from for your 1966 GMC K15/K1500 Pickup, and our inventory prices range from as little as $7.99 up to $553.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Differential Lock Assemblies for the 1966 GMC K15/K1500 Pickup. We only sell parts from trusted brands like Yukon Gear so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Differential Lock Assemblies stock in-person!

Differential Lock Assemblies for Your 1966 GMC K15/K1500 Pickup

Yukon Gear – Air Line Repair Kit, Zip Locker (Part No.34003)

Air Line Repair Kit, Zip Locker

from

$52.99
Air line repair kit, ZIP locker.

Product Features:
  • Air line repair kit
  • Includes 20′ air line and two repair fittings
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Powertrax – Lock Right Locker (Part No.1940-LR)

Lock Right Locker

from

$441.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.Powertrax® = Extreme Traction Systems!
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Powertrax – Lock Right Locker (Part No.1910-LR)

Lock Right Locker

from

$376.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.Powertrax® = Extreme Traction Systems!
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Yukon Gear – 20 Long Air Line For Zip Locker (Part No.34002)

20 Long Air Line For Zip Locker

from

$29.99
20 long air line for Zip Locker.

Product Features:
  • Air line
  • 20′ in length
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Powertrax – No-Slip Traction System (Part No.9204443020)

No-Slip Traction System

from

$553.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.Powertrax® = Extreme Traction Systems!
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Yukon Gear – Zip Locker Install Kit (Part No.34026)

Zip Locker Install Kit

from

$249.99
Product Features:
  • Installation kit
  • Includes o-ring for bulkhead fitting, bulkhead fitting, outer fitting, switch, front and rear switch cover, solenoid, zip ties and 20′ air line
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Yukon Gear – Pump Up Kit, Zip Locker (Part No.34031)

Pump Up Kit, Zip Locker

from

$174.99
Pump up kit, Zip Locker.

Product Features:
  • Tire pump up kit
  • Includes hose, fittings, couplers and teflon tape
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Yukon Gear – Zip Locker Soleniod Valve (Part No.34014)

Zip Locker Soleniod Valve

from

$99.99
Zip Locker soleniod valve.

Product Features:
  • Solenoid valve
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Yukon Gear – Zip Locker Bulkhead Fitting Kit (Part No.34000)

Zip Locker Bulkhead Fitting Kit

from

$36.99
Product Features:
  • Bulkhead fitting kit
  • Includes bulkhead fitting, outer fitting and o-ring
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Yukon Gear – Zip Locker Bulkhead Fitting (Part No.34001)

Zip Locker Bulkhead Fitting

from

$27.99
Product Features:
  • Bulkhead fitting
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Yukon Gear – Zip Locker Switch (Part No.34015)

Zip Locker Switch

from

$16.99
ZIP locker switch.

Product Features:
  • Switch
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Yukon Gear – Zip Locker Front Switch Cover (Part No.34009)

Zip Locker Front Switch Cover

from

$7.99
ZIP locker front switch cover.

Product Features:
  • Cover for switch
  • Front
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Yukon Gear – Zip Locker Rear Switch Cover (Part No.34010)

Zip Locker Rear Switch Cover

from

$7.99
ZIP locker rear switch cover.

Product Features:
  • Cover for switch
  • Rear
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FAQs for 1966 GMC K15/K1500 Pickup Differential Lock Assemblies

What are the most popular Differential Lock Assemblies for the 1966 GMC K15/K1500 Pickup?

With 2 brands you can trust, our most popular Differential Lock Assemblies for the 1966 GMC K15/K1500 Pickup parts are:
Air Line Repair Kit, Zip Locker
from $52.99
This product is not rated
Air Line Repair Kit, Zip Locker
Differential Lock Assemblies
Lock Right Locker
from $441.99
This product is not rated
Lock Right Locker
Differential Lock Assemblies
20 Long Air Line For Zip Locker
from $29.99
This product is not rated
20 Long Air Line For Zip Locker
Differential Lock Assemblies