1985 Chevrolet S10 / GMC S15 with 305/350ci Engine Swap Heavy-Duty Stage 1 HD Clutch Kit – Premium Replacement

The South Bend Clutch K04054-HD Stage 1 Heavy-Duty Clutch Kit is specifically designed for demanding applications such as fleet vehicles, trucks, and heavy-duty engine swaps. This high-performance clutch assembly is engineered to deliver reliable torque capacity and smooth engagement, making it an ideal choice for 1985 Chevrolet S10 and GMC S15 models with 305 or 350 cubic inch engines. Built with premium friction materials, this clutch ensures consistent power transfer and enhanced thermal capacity to prevent slippage during severe towing or high-horsepower scenarios.

Constructed for durability and long-term drivetrain reliability, the Stage 1 HD Clutch Kit features robust components that withstand the rigors of fleet and industrial use. The assembly’s design promotes smooth engagement, reducing chatter and drivability issues while supporting high torque loads. Whether upgrading an existing system or installing in a custom engine swap, this clutch kit provides a seamless fit and dependable performance across a range of heavy-duty applications.

Installation should follow the manufacturer’s recommended break-in procedure, which typically involves 500 miles of moderate driving before heavy towing or high-load operation. Always replace the pilot bearing, throwout bearing, and resurface or replace the flywheel during installation to ensure optimal performance. Proper cleaning of the pressure plate surface with a high-quality brake cleaner is essential for chatter-free engagement and maximum friction efficiency.

Features:

• Heavy-duty diesel and fleet torque capacity for demanding industrial applications

• Premium friction materials for smooth, consistent engagement and durability

• Enhanced thermal capacity to prevent clutch slippage under severe towing and high-horsepower conditions

• Designed for long-term drivetrain reliability and robust performance in heavy-duty trucks and fleet vehicles

Fitment:
Chevrolet S10 Base 1985 to 1993
Chevrolet S10 Durango 1985 to 1990
Chevrolet S10 EL 1992 to 1993
Chevrolet S10 Sport 1985 to 1989
Chevrolet S10 Tahoe 1985 to 1992
Chevrolet S10 Blazer Base 1985 to 1988
Chevrolet S10 Blazer High Country 1987 to 1988
Chevrolet S10 Blazer Sport 1985 to 1988
Chevrolet S10 Blazer Tahoe 1985 to 1988
GMC S15 Base 1985 to 1990
GMC S15 EL 1987
GMC S15 Gypsy 1986 to 1988
GMC S15 High Sierra 1985 to 1990
GMC S15 Sierra Classic 1985 to 1990
GMC S15 Jimmy Base 1985 to 1988
GMC S15 Jimmy Gypsy 1985 to 1988
GMC S15 Jimmy High Sierra 1985
GMC S15 Jimmy Sierra Classic 1985 to 1988
GMC S15 Jimmy Timberline 1988
GMC Sonoma Base 1991 to 1993
GMC Sonoma SLE 1991 to 1993
GMC Sonoma SLS 1993
Jeep Wrangler Base 1993
Jeep Wrangler Rio Grande 1995
Jeep Wrangler S 1993 to 1994
Jeep Wrangler SE 1997 to 1998