PRODUCT BY VEHICLE
Application Finder

SETS & SYSTEMS
Early GM to 1982

GM LSx, LT1, TPI
C4 Conversion Clutch
Mopar Muscle
Mustang & Ford
Street Dual Disc
Sport Compact
Pro Drag Race
Racing Software
Oval Track
Diesel Clutch Systems
Truck Pull

COMPONENTS & SPECIFICATIONS
Super Duty Competition
True Balance Flywheels
Pressure Plates
Clutch Discs
Street Hyd. Release Bearing
Bearings

REPAIR PARTS
Pro Drag Race
Oval Track

TECHNICAL
E-Tech Man
Tech Support
The Critical Difference

New in Clutch University 

What's the best way to drive my manual transmission car?

 

 

  Super Duty Pressure Plates

Selecting the correct pressure plate
  Long Style 
Description Size Bolt circle Static Pressure Part number
Standard Duty (5/16") 10.5

11.375

2600

 405
Standard Duty (5/16") 10.5

11.375

1800

 415
Super Duty 11

12.375

1800

 440
Super Duty 11

12.375

2000

 439
Super Duty 11

12.375

2400

 436
Super Duty 11

12.375

2800

 437
Super Duty w/ CW 11

12.375

2800CW

 437CW
Standard Duty Adj. (5/16") 10.5

11.375

18-2400

 425
Super Duty Adjustable 11

12.375

12-1800

 435
Super Duty Adjustable 11

12.375

15-2100

 448
Super Duty Adjustable 11

12.375

18-2400

 438
Super Duty Adjustable 11

12.375

22-2800

 458
Super Duty Adjustable 11

12.375

12-1800

 438CW
Super Duty Adjustable 11

12.375

15-2100

 448CW
Super Duty Adjustable 11

12.375

18-2400

 438CW
Super Duty Adjustable 11

12.375

22-2800

 458CW
5/16" mounting bolt set 491
3/8" mounting bolt set 490
Borg & Beck 
Description Size Bolt Circle Static Pressure Part number
Borg & Beck 10.5

11.625

2800

403
Borg & Beck 10.5

11.625

3200

423
Borg & Beck 10.95

11.625

2800

418
Borg & Beck 10.95

11.625

3200

428
Borg & Beck 11

12.625

2800

404
Borg & Beck 11

12.625

3200

414
Borg & Beck 12

12.625

2800

407
5/16" mounting bolt set

491
3/8" mounting bolt set

490
Diaphragm Applications
Description Size Bolt Circle Static Pressure Part number
Diaphragm GM 10.5

11.625

3000

401
Diaphragm GM 11

12.625

3000

402
Diaphragm GM LT1 93-97 11

12.625

2500

40082HD
Diaphragm GM LS1 to 04 11

12.625

3000

402L
Diaphragm Ford HD 10.5

11.75

2500

434
Diaphragm Ford Cobra 10.5

11.75

2500

432
Diaphragm Ford Cobra 11

 12.375

2600

431
5/16" mounting bolt set

491
3/8" mounting bolt set

490

 

 

 

 

Copyright 1996-2008 RAM Automotive Company All rights reserved.  Feel free to review our privacy policy.