March 02, 2017
It’s Snow Plowing Season Again! Understanding 4L80-E Overdrive Roller Clutch Failure
Jim Dial
Basic Installation Steps for the Smart-Tech® Overrun Clutch Valve Kit
Presented by Sonnax
A Simple Hydraulic Solution to a Complex Mechanical Problem
Build in unrivaled 4L80-E, 4L85-E durability with the Sonnax Smart-Tech overrun clutch valve kit. As this video demonstrates, the simple components install easily onto the valve body — no transmission removal required — for improved performance and maximum protection against overdrive roller clutch failure. Detailed installation instructions are included with every kit.
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June 22, 2017
Outsmarting 4L80-E Overdrive Roller Clutch Failure
Related Units
Related Parts
Required
Recommended
4L80-E, 4L85-E
Smart-Tech® Overrun Clutch Valve Kit 34200-40K
Fits units '97-later.
-
Helps cure:
- OD roller clutch failure
- No Forward
- Overrun clutch distress
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.