Instant Rebates
800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

Sonnax 77911-03K

2nd Gear Super Hold Servo Kit 4L60, 4L60-E, 4L65-E, 4L70-E

Sonnax 77911-03K

852-77911-03K

jegs shipping
Estimated ship date 08/24/17 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Sonnax 77911-03K 2nd Gear Super Hold Servo Kit 4L60, 4L60-E, 4L65-E, 4L70-E $91.25
2nd Gear Super Hold Servo Kit
  • 4L60, 4L60-E, 4L65-E, 4L70-E

  • Sonnax 77911-03K Details

    Servo Kits

    • 2nd Gear Piston
    • Separator
    • Apply Pin
    • D-Rings, Small (2)
    • D-Rings, Large (2)
    • O-Ring, Small
    • O-Rings, Large (2)
    • PTFE Seals (2)
    • 2nd Gear Piston
    • Separator
    • Apply Pin
    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, which contribute to 2-4 band and 3-4 clutch failure. 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. For the ultimate servo combination in your 4L60/4L60-E, Sonnax recommends using the Sonnax 4th gear super hold servo 77767K with the Sonnax 2nd gear super hold servo kit 77911-03K.

    • 18% more apply area than OE Corvette servo
    • Dual seals on 2nd apply piston and separator
    • Servo piston and separator are made from 6061-T6 aluminum
    • O-ring seal between pin and 2nd gear piston
    • Two PTFE rings seal pin to bore
    • Servo pin is made from chromoly steel
    • Kit includes all necessary seals

    Specifications:

    Manufacturer's Part Number:
    77911-03K

    In high performance applications where a larger servo is desired, the Sonnax Servo Kits provide a larger apply area. The Sonnax servo is calibrated to progressively increase band apply force as line pressure increases. Sonnax servos are the perfect upgrade for more holding power without excessively harsh shifts.

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List