ReadyLIFT GMC Sierra 3500HD, 2011-UP, 2WD & 4WD 8-lug Single and Dual Rear Wheel, 2 Block Kit" User Manual
Page 3
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www.ReadyLIFT.com
Phone (702)410-2300
Installation Instructions (66-3121 & 66-3122)
for trucks w/trailer pkg.
Raise and support vehicle on level ground and support frame.
Release ABS clip from bracket on axle.
Support axle and remove U-bolt hardware and axle bracket
Remove U-bolts and lower axle to allow lift block positioning
Note
slight taper on block, shorter end towards front of truck
Raise axle aligning center pin and install new U-bolts/nuts.
Slide ABS wire clip at frame up to gain slack to avoid damage
Torque U-bolts with vehicle on ground and re-clip ABS wire
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