Wheel Nut and Rim Nut Check
Important: After installing a wheel, the wheel or rim nut torque must be rechecked after 50 to 100 miles (80 to 160 km) of operation.
See Table. for wheel nut torque specifications, and see Fig. for the wheel nut tightening sequence.
Notice: Insufficient wheel nut (rim nut) torque can cause wheel shimmy, resulting in wheel damage, stud breakage, and extreme tire tread wear. Excessive wheel nut torque can break studs, damage threads, and crack discs in the stud hole area. Use the recommended torque values, and follow the tightening sequence shown in Fig..
When checking wheel nuts on a dual disc assembly, remove one outer nut at a time, torque the inner nut, then reinstall and torque the outer nut. Repeat this procedure for all wheel nuts, using the tightening sequence shown in Fig..
Table 1, Wheel Fastener Torque
|
Description |
Nut Size |
Wheel Manufacturer |
Torque: lbf·ft (N·m) |
|---|---|---|---|
|
8-Stud Disc Wheel With Two-Piece Flanged Locknuts (with lubricated threads) |
|||
|
Front and Rear Wheel Nut |
— |
All |
450–500 (610–680) |
|
10-Stud Disc Wheel With Two-Piece Flanged Nuts (with lubricated threads) |
|||
|
Front and Rear Wheel Nut |
M22 x 1.5 |
Budd (Uni–Mount 10) |
390–440 (530–600) |
|
10-Stud Disc Wheel With Inner and Outer Locknuts (with dry threads) |
|||
|
Front Wheel Nut |
1-1/8–16 |
Alcoa |
400–500 (540–680) |
|
All Others |
450–500 (610–680) |
||
|
Rear Wheel Inner Nut |
3/4–16 |
Alcoa |
400–500 (540–680) |
|
All Others |
450–500 (610–680) |
||
|
Rear Wheel Outer Nut |
1-1/8–16 |
Alcoa |
400–500 (540–680) |
|
All Others |
450–500 (610–680) |
||
|
Wheel Stud Retainer Nut |
3/4–16 |
All |
175–200 (235–270) |
|
Spoke Wheel Rim Nuts (with dry threads) |
|||
|
Front Wheel Nut, 5- and 6-Spoke |
3/4–10 |
Gunite |
200–225 (271–305) 1 |
|
Rear Wheel Nut, 5- and 6-Spoke With Non-Corrugated Channel Spacer |
3/4–10 |
Gunite |
200–225 (271–305) |
|
Rear Wheel Nut, 5- and 6-Spoke With Corrugated Channel Spacer |
3/4–10 |
Gunite |
240–260 (325–350) |
- On front axles with over 12,000 lbs (5448 kg) capacity, tighten the wheel nuts 240 to 265 lbf·ft (325 to 359 N·m). Gunite part number W–854 nut with a phosphate-and-oil coating must be used.
Table 1, Wheel Fastener Torque
-
8-Stud Disc Wheel
-
10-Stud Disc Wheel
-
6-Spoke Wheel
-
5-Spoke Wheel