31570K - SERVO PISTON KIT DUAL O RING STYLE

# 31570K

SERVO PISTON KIT DUAL O RING STYLE

Dual-seal design, O-ring style

GM Powerglides used for drag racing generate higher line pressure than the OE servo piston can withstand. At pressures over 200 psi, the OE piston can crack, resulting in transmission failure. This Sonnax servo piston kit improves transmisison performance and durability under high-pressure conditions.

High-strength billet aluminum piston also features a rounded profile for better stress distribution
Dual O-ring-style piston improves sealing in worn or scuffed cases
Easy to install, no case modifications required

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