See Figure 1
All lug nuts should be tightened frequently to eliminate the possibility of the studs being sheared off or the bolt holes enlongating. This is especially important during the first few hundred miles of the vehicle's use to allow the nuts to properly set. All wheel nuts should fit firmly against the wheel. The wheel studs should then be tightened to the recommended torque. Tighten the nuts to final torque in increments. Progress around the wheel bolt circle, tightening the nut opposite the one previously tightened.
DUAL REAR WHEELS WITH FLANGED NUTS
See Figures 2 and 3
This wheel type has 4 equally-spaced stud holes which are coined outward and 4 which are coined inward. The outer wheel must be installed so the coined stud holes match the stud holes of the inner wheel.
There is a locating pin in the hub which will assist in properly orienting the inner and outer wheels. The tires of both dual wheels must be completely off the ground when tightening the wheel to insure centering and maximum wheel clamping.
- Tighten the wheel nuts in the numbered sequence to a snug fit.
- Retighten the nuts in the same sequence to a torque of 325 ft. lbs. (440.37 Nm).
- Go through the sequence a second time to insure torque specification has been achieved. Retighten to specification at 100 miles (160 km) and after 500 miles (800 km).
It is recommended that the stud nuts are kept torqued to specification at all times. Torque your stud nuts to specification at each lubrication interval.