GMC 1986 P-Truck Service Manual page 156

3. Front bolts and washers.
4. Hitch from the vehicle.
Install or Connect (Figure 26)
1. Hitch to the vehicle.
2. Front bolts and washers.
Tighten
• Bolts to 70 N m (52 ft. lbs.).
Figure 26—W eight D istribution Hitch
3. Rear washers and nuts.
4. Bumper to the vehicle with nuts and bolts.
BUMPERS 2B-17
• Nuts to 63 N m (47 ft. lbs.).
• Nuts to 29 N m (21 ft. lbs.