Upgraded Solutions

6L45 6L50 6L80 6L90 Shift & TCC Kit | Sonnax

Sonnax part number: 6L45-6L90-MINI Sonnax shift and TCC kit 6L45-6L90-MINI contains the most common and crucial repairs needed to get GM 6L45/50, 6L80/90 vehicles back on the road fast. Targeting...

6L80 8L90 Cooler Bypass Eliminator Kit | Sonnax

Sonnax part number: 104740-32K Services Two Vehicles

6L80 6L90 The Sure Cure® Kit | Sonnax

Sonnax part number: SC-6L80-6L90 USE OF AN ARBOR PRESS IS REQURIED FOR CORRECT

6L90 Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft | Sonnax | PowerGlide Style Hub

Sonnax part number: 104690-45Fits: 6L90OE part no.: 24230480 Use with Powerglide-style, 45-tooth frictions, Sonnax steels & high capacity piston kit

6L45 6L50 6L80 6L90 Reprogramming Kit Drive Tow Race

TransGo part number: 6L80-TOW&PRO Drive. Tow. Race. Available now— The first and only 6L80 performance kit for trucks and performance applications. With increased max main line pre

6L80 6L90 8L90 1000 Cooler Flow Bypass Delete Kit by TransGo

TransGo part number: 6L80-CLR-BYPASS An easy, no-hassle cost-effective drop-in Cooler Flow Bypass Delete Kit for General Motors 6L80, 6L90, 8L90 and Allison transmissions. Corrects/Prevents/Reduces: <

6L80E 6L90E Valve Body Repair Kit

Part number: 6L80E-VBK Central Valve Bodies valve body repair kit (shift kit) for GM 6L80E/90E transmissions. The kit contains 4 valves, 7 plugs and 2 springs. Central Valve Bodies part number...

6L80 6L45 6L50 6L90 Actuator Feed Limit Valve Kit | Sonnax

Sonnax part number: 104740-47K 6L80 6L45 6L50 6L90 Actuator Feed Limit Valve Kit GM 6L45, 6L50, 6L80 and 6L90 units often suffer from shift abnormalities caused by excess wear in the actuator feed...

6L80 6L90 6L45 6L50 Pressure Regulator Boost Valve Kit

Superior Transmission Parts part number: STL018Our SKU: STP-STL018 This TransLab Engineered Boost Valve for GM's 6L45, 6L50, 6L80 and 6L90 automatic transmission units can be installed in conjunction...

6L80 6L90 6L45 6L50 HD TCC Regulator Valve Spring | Sonnax | 5-Pack

Sonnax part number: 104740-45K 6L80 6L90 6L45 6L50 HD TCC Regulator Valve Spring Vehicles with GM 6L45, 6L50, 6L80 and 6L90 transmissions may have complaints of vibration, shudder or roughness,...

6L80 6L90 6L45 6L50 6T45 Compensator Feed Regulator Valve Kit | Sonnax

Sonnax part number: 104740-09K 6L80 6L90 6L45 6L50 6T45 6T40 (GEN-1) 6T45 (GEN-1) 6T50 (GEN-1) Compensator Feed Regulator Valve Kit Listed GM transmissions incorporate a low-pressure compensator feed...

6L80 6L90 6L45 6L50 Center Support Seal Kit | Sonnax

Sonnax part number: 104740-14K 6L80 6L90 6L45 6L50 Center Support Seal Kit The rubber seals between the center support in the case and the machined surface of the valve body are prone to leakage over...

6L80 6L90 6L45 6L50 HD Pump Vane | Sonnax

Sonnax part number: 76742 A replacement pump vane for GM 6L45, 6L50, 6L80 and 6L90 automatic transmission pump rotors, made by Sonnax. It measures 0.534" wide, 0.706" tall and 0.079" thick. Replacing...

6L80 6L90 HD Pump Slide Spring | Sonnax

Sonnax part number: 104534-HD Sonnax high-performance pump slide spring 104534-HD for GM 6L80 and 6L90 transmissions helps maintain consistent pump volume during line rise and at high-RPM operation...

6L80 6L90 6L45 6L50 Pressure Regulator Valve Kit (Changing to 104520-15K)

Sonnax part number: 104520-14K

6L80 6L90 6L45 6L50 Line Pressure Booster Kit | Sonnax

Sonnax part number: 6L80-LB1 6L45 6L50 6L80 6L90 Line Pressure Booster Kit Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves...

6L80 6L90 6L45 6L50 Pump Boost Valve Kit | Sonnax

Sonnax part number: 104520-12K 6L45 L650 6L80 6L90 Boost Valve Kit Vehicles with listed GM transmissions may exhibit insufficient line rise in drive ranges, soft shifts and/or burnt clutches. These...

6L80 6L90 High Capacity 4-5-6 Clutch Apply Piston Kit | Sonnax

Sonnax part number: 104960-10K Use with OE 36-tooth clutches and OE steels. This kit is intended for applications with aftermarket tuning that accommodates more aggressive clutch apply from...

6L80 6L90 4-5-6 Clutch Backing Plate

Sonnax part number: 104140A-01 GM 6L80 and 6L90 transmissions often suffer failure of the 4-5-6 clutch assembly due to flexing and bowing of the backing plate (coning), especially when clutch apply...

GM 6L80 6L90 6L45 6L50 Transmission Valve Body Upgrade Kit

Superior Transmission Parts part number: STL-6L80EOur SKU: STP-STL-6L80E This new TransLab Engineered 6L80/6L90 6L45/6L50 transmission valve body upgrade kit corrects, prevents, upgrades and...