Description
ATS Install Kit Allison Conversion Replaces 4 Wheel Drive Aisin AS68RC 2010 2012 1997 1998 60% lighter than the stock HSK66 12637785 12637788 60% lighter than the stock rear drum – 1 0 inch mandrel bent 409 stainless steel tubing provide maximum exhaust flow and durability The first three gears of the 48RE are spaced evenly while the 4th gear is a massive jump into overdrive The 68RFE transmission has a fantastic gear split between its 1st through 6th gears providing an almost perfect gear ratio change