REAR AXLE AND SUSPENSION
Rear Suspension U-Bolts, Grade 8
(lubricated*)
U-BOLT
SIZE
DIAMETER
THREAD
TORQUE**
Nm Lb-Ft
3/4
333-408 245-300
7/8
598-734 440-540
1 925-1,060 680-780
1-1/8
1,470-1,660 1,080-1,220
1-1/4
1,890-2,120 1,390-1,560
1-1/2
3,130-3,860 2,300-2,840
*Chevron Zinc
Lubricant or SAE 20/30 oil
should be used on U-Bolt threads
**Torque requirements apply to manufacturer
proprietary suspensions. All other
suspensions must refer and adhere to
original manufacturers shop manual.
• Load the vehicle to its normal
gross weight before tightening
U-bolts. Loading the vehicle
ensures proper adjustment of the
U-bolt and spring assembly.
WARNING!
Do not replace U-bolts and nuts with
common U-bolts or standard nuts.
These parts are critical to vehicle
safety. If the wrong U-bolts or nuts
are used, the axle could loosen or
separate from the vehicle and cause
a serious accident. Use only U-bolts
and nuts of SAE Grade 8 specication
or better. Failure to comply may result
in death, personal injury, equipment or
property damage.
Rear Axle Lubrication
Check oil level with the vehicle parked
on level ground and the uid warm.
The level should be even with the
bottom of the ller hole.
5
(04/13) Y53-6047–2C 5-127
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