Yukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.
Fits AAM 11.5'', 38 spline. Yukon spools provide 100% traction to both wheels for off road, racing and performance applications.
In order to use this spool, the factory spindles will need to be bored out to accept the 38 spline axles.
GM & CHY 11.5 AAM FULL SPOOL, 38spl
