NGK Spark Plug R5671A-10 (30+ psi of Boost) NGK's V-grooved center electrode moves the spark to the outer edge of the electrode for improved ignitability in all combustion chamber conditions. This configuration is especially helpful for throttle...

Billet Wire Loom (LC 8.5mm Pro Wire Separators) Not only does this setup look great, but the LC Engineering billet plug wire loom allows you to route your wires away from exhaust heat without worrying about them coming loose. The LC Engineering Billet...

6.7" Carrier Spool Spool lockers offer low cost traction by replacing the differential carrier, locking the axle shafts together. Locking the axles provides maximum traction for off-road use. NOTE: Not recommended for use on the street. For use only...

6.7" Carrier Spool Spool lockers offer low cost traction by replacing the differential carrier, locking the axle shafts together. Locking the axles provides maximum traction for off-road use. NOTE: Not recommended for use on the street. For use...

8" 4WD Differential Housing Building your own 3rd member? Our 3rd member housings include caps, cap bolts, adjusting wheels, lock tabs and lock tab bolts. Housings are all new with no core return to worry about! Contact our Tech Support Line for...

8" Differential Housing (High Pinion) High Pinion differentials are the strongest eight inch differentials that Toyota ever made, the only problem was that they are also the most expensive and hardest to find. We now have a High Pinion differential...

Rear 8" V6 Dropout 3rd Member 4.56 Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt on the diff cover, add...

Rear 8" V6 Dropout 3rd Member 5.29 Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt on the diff cover, add...

Rear 8" V6 Dropout 3rd Member 4.88 Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt on the diff cover, add...

Rear 8" V6 Dropout 3rd Member 4.11 Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt on the diff cover, add...

8" Assembled 3rd Member Dura Grip LSD/30 Spline/4.11 Ratio Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed, and backlashed to spec. All you do is install the third member into your diff housing,...

8″ Assembled 3rd Member Grizzly Locker/30 Spline/4.56 Ratio Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt...