TH700-R4, 4L60

Sonnax 2nd gear super hold servo kit for GM 4L60 (700-R4), 4L60-E, 4L65-E and 4L70-E units delivers 18% more apply area than the “Corvette” servo (largest OE). It's the perfect choice for performance applications when a larger-than-OE servo is desired, and its unique design avoids the timing flaws and excessive shock loads found in other aftermarket servos. Combine this servo kit with Sonnax 4th gear servo # 37582K for unmatched holding power and shift performance that's an easy in-vehicle install.

• 18% More apply area than OE "Corvette" servo
• Maximizes holding power in 2nd gear with more positive 1-2 and 2-3 shifts
• Dual seals ensure positive band apply/release and eliminate cross leaks
• Chromoly steel apply pin is longer than longest OE pin and features added seals to reduce leakage of 3rd gear pressure
• Servo and piston made from durable billet aluminum

Specifications:

• 2nd Gear Piston
• Separator
• Apply Pin
• D-Rings, Small (2)
• D-Rings, Large (2)
• O-Ring, Small
• O-Rings, Large (2)
• PTFE Seals (2)

SONNAX Installation Instructions

Sonnax 4L60E Level 3 Transmission Build