The Centerforce(R) DYAD(R) DS (Drive System) 10.4 Inch patented multi-disc clutch offers smooth engagement, light pedal, and high-end holding capacity for engine torque levels from 500 to 1300 ft /lbs.
The Centerforce(R) DYAD DS 10.4" twin disc clutch has been developed for vehicles requiring a holding capacity of 500 to 1300 ft/lbs of torque at the crank. The pressure plate features our patented centrifugal weight system for superior clamp load over stock and our patented ball bearing actuated pressure plate providing light pedal effort. The discs are equipped with organic segmented facings providing increased holding capacity and the sprung/dampened drive disc provides smooth drivability. DYAD DS clutches are equipped with a lightened billet steel flywheel providing low inertia resulting in quicker RPM's. Components are designed, machined and assembled in the USA. DYAD DS clutches are match balanced and ready for installation using the included ARP fasteners.
Application Summary:
| Year |
Make/Model |
| 1978 |
Chevrolet C10 |
| 1978 |
Chevrolet C20 |
| 1978 |
Chevrolet C20 Suburban |
| 1978 |
Chevrolet C30 |
| 1970-1971 |
Chevrolet El Camino |
| 1978 |
Chevrolet K10 |
| 1978 |
Chevrolet K20 |
| 1978 |
Chevrolet K20 Suburban |
| 1978 |
Chevrolet K30 |
| 1978 |
Chevrolet K5 Blazer |
| 1970-1971 |
Chevrolet Monte Carlo |
| 1978 |
GMC C15 |
| 1978 |
GMC C25 |
| 1978 |
GMC C25 Suburban |
| 1978 |
GMC C35 |
| 1978 |
GMC K15 |
| 1978 |
GMC K15 Suburban |
| 1978 |
GMC K25 |
| 1978 |
GMC K25 Suburban |
| 1978 |
GMC K35 |
| 1971 |
GMC Sprint |
| Attributes |
| Alignment Tool Included |
Yes, Yes |
| California Proposition 65 |
WARNING: Cancer - www.P65Warnings.ca.gov |
| Clutch Disc Diameter |
10.4, 10.4, 10.4, 264.2 |
| Counterweight Assist |
YES, Yes, YES |
| Country of Origin (Primary) |
US |
| Crankshaft Bolt Hole Quantity |
6, 6, 6 |
| Disc Material |
Organic/Carbon composite, Organic/Carbon composite, Organic/Carbon Composite |
| Disc Type |
Segmented face, Segmented face, Segmented face |
| Disc Type Sprung Solid |
Sprung, Sprung, Sprung |
| Emission Code |
Legal US |
| Flywheel Counter Balance Weight |
24.4, 24.4, 24.4 |
| Flywheel Crank Bolt Size |
7/16 in x 20 x 0.875, 7/16 x 20, 7/16 in x 20 x 0.875 |
| Flywheel Crank Flange Register |
2.4855, 2.4855, 2.4855 |
| Flywheel Deck Height |
3.00, 3 |
| Harmonized Tariff Code (Schedule B) |
8708935000 |
| Hazardous Material Code |
N |
| Input Shaft Diameter |
1-1/8, 1-1/8, 1-1/8 |
| Input Spline Quantity |
26, 26, 26 |
| Installed Height |
3.00, 3.00 |
| Life Cycle Status Code |
Available to Order |
| Made In The USA |
Assembled, Assembled |
| Material |
Billet Steel Flywheel / Nodular Iron Pressure Plate / Segmented Organic Friction, Billet Steel Flywheel / Nodular Iron Pressure Plate / Segmented Organic Friction, Billet Steel Flywheel / Nodular Iron Pressure Plate / Segmented Organic Friction |
| Mounting Hardware Included |
Yes, Yes |
| NAFTA Preference Criterion Code |
B |
| Out of Package Weight |
47.80 |
| Outside Diameter |
14.096 |
| Pilot Bushing Included |
Yes, Yes |
| Rear Main Seal Style |
2 |
| Ring Gear O.D |
14.096 |
| Ring Gear O.D. |
14.105, 14.105 |
| Ring Gear OD |
14.096 |
| Ring Gear Tooth Count |
168 |
| SDR Required Flag |
N |
| Seal Type |
2, 2 |
| Tooth Quantity |
168, 168 |
| Torque Capacity |
1300, 1300 |
| Warranty Time |
12 |
| GTIN |
00788442034233 |
