ATSG 4L60E Transmission Repair Manual (GM THM for Sale New or Used 4L60e Valve Body - Repair Shops Can Save On Rebuild Costs) Highest quality charts available in the automatic transmission industry Step by step process to help you along the way Must have for any 4L60-E rebuild ATSG researches, writes, illustrates and produces all of our tech manuals in house We are the ones to write, illustrate, and breakdown the 4L60-E like we do