8L90 8L45 Valve Body Upgrade Kit | Shudder-Solution

Product Description

STL-8L90 “SHUDDER”~SOLUTION™ for the 8L45/8L90 TRANSMISSIONS

Fits ALL 2007-up 8L series units

Stops the Shuddering and Chattering in all 8L series units.

This kit contains all parts necessary to correct shudder for good, in 8L’s units AND can be installed in units that start to exhibit “SHUDDERING” of the TCC system… in most cases, without removing the Transmission Assembly and by installing it from the bottom. 

The 8L90 GM 8 Speed SHUDDER~SOLUTION™ kit with Flow~Corrected™, recalibrated STEADY~STREAM™ circuit Recalibrated TCC Lock/release system (Patent-pending) with Features to Correct and Prevent:

• Shorter TCC apply / release cycles, as close to an on/off apply feel as you can get… with durability

• Extends converter life, reduces heat generation

• Increases TCC Holding Capacity / Corrects the ROOT CAUSE of TCC SHUTTER patent pending system

• Comes with Drop~in and GO! ™ TCC Limit Valve

• Inc. P.R. Balance valve and sleeve

• Delivers TCC Lockup system integrity without Malfunction

• “Anti-Ballooning” Relief Valve to prevent Converter Ballooning (patent-pending)

Can be installed in vehicles that start to exhibit TCC chattering with low mileage and the converter has not been severely damaged from the chattering / shuddering.

We recommend trying the kit 1st if the converter is still intact internally, and we have stopped the vibrating of the Lock-up clutch in all test units.