Yukon Gear Spool For GM & Chrysler 11.5in / 38 Spline

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.This Part Fits: Year Make Model Submodel 2004-2013 Chevrolet Express 3500 Base 2004-2013 Chevrolet Express 3500 LS 2006-2013 Chevrolet Express 3500 LT 2001-2004 Chevrolet Silverado 2500 Base 2001-2004 Chevrolet Silverado 2500 LS 2001-2004 Chevrolet Silverado 2500 LT 2004 Chevrolet Silverado 2500 WT 2001-2005 Chevrolet Silverado 2500 HD Base 2015 Chevrolet Silverado 2500 HD High Country 2001-2006 Chevrolet Silverado 2500 HD LS 2001-2015 Chevrolet Silverado 2500 HD LT 2007-2015 Chevrolet Silverado 2500 HD LTZ 2003-2015 Chevrolet Silverado 2500 HD WT 2007 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 25