June 21, 2016

NEW! GM 4L80/85-E 3rd & Reverse Checkball Sleeve Kit

Conquer 3rd, 4th and Reverse slip, burnt direct clutches, and gear ratio codes in GM 4L80/4L85-E transmissions with Sonnax 3rd and Reverse checkball sleeve kit 34200-47K. The kit works by restoring hydraulic integrity to renew shift performance, and also protects against premature wear for lasting results. Learn more.

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