Frequently Asked Questions
Transmission Lookup
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Spring, GM 700R4, 4L60, 4L60E, 200-4R, 1-2 Accumulator Spring, Enhanced Performance
 Spring, GM 700R4, 4L60, 4L60E, 200-4R, 1-2 Accumulator Spring, Enhanced Pe Spring, GM 700R4, 4L60, 4L60E, 200-4R, 1-2 Accumulator Spring, Enhanced Pe 1-2 Accumulator Spring, Enhanced Performance, Bag/5 |
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Part Number: TAT-77704S-SX
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Sonnax enhanced performance accumulator spring 77704S provides firmer 1-2 shifts for the enthusiast that appreciates quick, positive shift feel in GM 200-4R, 4L60 and 4L60-E series units. The Sonnax spring design provides performance shift feel, but does not reduce accumulator piston travel. This allows for a firmer - but still cushioned - shift that minimizes shock to the band and shafts.
The Sonnax spring achieves the same effect as the common shop practice of replacing the OE 1-2 accumulator spring with the THM 350 direct accumulator piston spring. The Sonnax spring also may be used as a replacement for the THM 350 direct accumulator piston spring.
In ‘94-later units, install with the spring against the separator plate. See instructions for details. |
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