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Product Review
- The Sonnax 2nd gear super hold servo kit 77911-03K for GM 4L60/4L60-E has 18% more apply area than the “Corvette” servo (largest OE) and maximizes holding power in 2nd gear with more positive 1-2 and 2-3 shifts.
- Dual seals on the 2nd gear piston and separator ensure positive band apply/release and eliminate cross leaks
- This servo is the perfect option when more holding power is desired without causing excessively harsh upshifts and downshifts
- The included apply pin is longer than the longest OE pin, and has added seals to reduce leakage of 3rd and 4th gear oil pressure
