RETRO-FITS GEN1 and GEN2 Type castings to use GEN3 features. Eliminates the need to purchase updated OE style separator plates or castings Added # 8 check ball and Low-Rev Clutch circuit exhaust control features Patent pending FLOW~LIMITED compensator system circuit technology Restores integrity to compensator and exhaust backfill circuits thus limits loss of pump volume output “bleed out” and Improves Reverse and Drive engagement especially when HOT Patent pending compensator valve & circuit design for “NO~YUMP” 1-2 shift Includes Corrected* NO~STICK Select valves, end plugs and calibrated springs Combine with the STL012 6L series Pump Upgrade kit for peace of mind. 2014-up 6L80 and 2016-up 8L90 add STL010 SURE~COOL Cooler~Flow system for complete protection from A malfunctioning CFV (cooler flow valve) *Superior/TransLab NO~REAM, Drop~in and GO! Proprietary designed Real~Steel Valves and Sleeves Superior STL-6L80E TransLab Engineered 6L80E/6L90E Valve Body Upgrade Kit - Corrects, Prevents, Upgrades and RETRO-FITS all 6L80/90 GEN1 & GEN2 valve bodies to GEN3 2014- up features without changing castings or plates.