Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 GMC Forward Control 6.5 FFACTORY OEM SERVICE PROCEDURE
Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Adjuster Plug Lock Nut | 78-81 (106-110) | |
| Connecting Rod Adjuster Clamp Nut | ||
| Models With I-Beam Axle | 50 (68) | |
| Connecting Rod-To-Pitman Arm Nut | ||
| Models With I-Beam Axle & Motorhome | 70 (95) | |
| Connecting Rod-To-Relay Rod Nut | 70 (95) | |
| Idler Arm Mounting Bolts | 30 (41) | |
| Idler Arm-To-Relay Rod Nut | 66 (89) | |
| Intermediate Shaft-To-Stub Shaft Bolt | ||
| With I-Beam Axle | 80 (108) | |
| Without I-Beam Axle | 75 (102) | |
| Pitman Arm-To-Relay Rod Nut | 66 (89) | |
| Pitman Arm-To-Steering Gear Nut | ||
| Models With I-Beam Axle & Motorhome | 125 (169) | |
| All Other Models | 184 (249) | |
| Pitman Shaft Adjuster Screw Lock Nut | 35 (47) | |
| Rack Piston End Plug | 110 (149) | |
| Relay Arm-To-Relay Rod Nut | 66 (89) | |
| Shock Absorber-To-Frame Bolt | ||
| Commercial Van With I-Beam Axle | 35 (47) | |
| Motorhome | 8 (11) | |
| Shock Absorber-To-Idler Arm Nut | 46 (62) | |
| Shock Absorber-To-Relay Rod Nut | 45-46 (61-62) | |
| Shock Absorber-To-Tie Rod Nut | ||
| Models With I-Beam Axle | 46 (62) | |
| Side Cover Bolts | 45 (61) | |
| Steering Gear Mounting Bolts | 66 (89) | |
| Steering Pump Mounting Bolts | ||
| 4.3L & 5.7L | 25 (34) | |
| 6.2L Diesel | 32 (43) | |
| 7.4L | 36 (49) | |
| Tie Rod Adjuster Clamp Nut | 14 (19) | |
| Tie Rod Jam Nut | ||
| Commercial Van With I-Beam Axle | 277 (375) | |
| Tie Rod-To-Relay Rod Nut | 66 (89) | |
| Tie Rod-To-Steering Knuckle Nut | ||
| Commercial Van With I-Beam Axle | 162 (220) | |
| All Other Models | 46 (62) | |
| Union Fitting | 55 (75) | |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.