TH700-R4/4L60E 29-Element Input Sprag fits GM

TH700-R4/4L60E Forward Clutch Input Sprag (29 Element) – Compatible for GM 1982-Up

Upgrade your TH700-R4 or 4L60E with this bulletproof 29-element forward input sprag from Stellar Automotive Group.

The factory 16-element sprag is the #1 failure point in high-torque or performance builds — it rolls over, grenades the forward clutch, and leaves you with no upshift or drive. This heavy-duty 29-element sprag doubles the holding capacity, eliminates rollover, and delivers rock-solid 1-2 upshifts even behind modified LS engines or big cams. Perfect for street, strip, or towing applications.

Perfect fit for popular models including:

• Chevrolet Camaro, Corvette, Silverado, Tahoe, Suburban
• GMC Sierra, Yukon
• Cadillac Escalade

Symptoms of a failing stock sprag:

• No 2nd gear or delayed/harsh 1-2 shift
• Ratcheting noise under acceleration
• Forward clutch burnout on teardown

Drop this HD sprag in during your next rebuild and never worry about the forward input again.

Note: All parts are distributed, not designed or manufactured, by Stellar Automotive Group.

Add the toughest TH700-R4/4L60E input sprag on the market to your cart today and build it to survive!