Yukon GM 8.5" & 8.6" Steel Spool - 30-Spline, 2.73 & Up 1980-chevrolet-k20-esi8508551 It provides lower engine RPM

It provides lower engine RPM at highway speeds and is commonly found in daily-driven trucks focused on fuel economy and cruising comfort

1971 - 1972 Chevrolet K20 Suburban 1977 - 1986 Chevrolet K30 1971

The Yukon Dana 44 Grizzly Locker is a full mechanical automatic locking differential designed for 30 spline Dana 44 axle applications using 3

This is a thick gear set

restoration builds

Yukon GM 8.5" & 8.6" Steel Spool - 30-Spline, 2.73 & Up 1980-chevrolet-k20-esi8508551 It provides lower engine RPMThis 30 spline steel spool for GM 8. 5" and 8. 6" rear axles is designed to deliver maximum strength and full time traction in drag racing, mud trucks, and dedicated trail rigs where traction and simplicity are critical.. By replacing the factory differential carrier, it permanently locks both axle shafts together, ensuring equal torque delivery to both wheels under all conditions. Commonly found in GM trucks, SUVs, and performance cars, the 8. 5" and