6L80 6L90 Valve Body Upgrade Kit Gen 1 & Gen 2 Superior STL-6L80E

6L80 6L90 Valve Body Upgrade Kit Gen 1 & Gen 2 Superior STL-6L80E

Regular price
Sale price
Regular price
Sold out
Unit price
Shipping calculated at checkout.

6L80 6L90 Valve Body Upgrade Kit  Gen 1 & Gen 2 Superior STL-6L80E

fits 6 Speed Vehicles

• 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


GOT QUESTIONS on your specific Year/Make/Model?  Send us a message

Visit My eBay Store: Phoenix Transmission Parts for all of your Automatic Transmission Part needs.

Check out my other items!
Be sure to add me to your favorites list!