Tuff Country 14056 - GM 07-13 Silverado 1500 4wd 4 lift kit - Manual (Page 13)

49. To begin installation, carefully block the front tires and
wheels so that the vehicle can not roll forward. Safely lift the
rear of the vehicle and support the vehicle with a pair of jack
stands. Place a jack stand on both the driver and the pas-
senger side. Next, remove the rear wheels and tires from
both sides.
50. Working on the driver side, remove the ABS line from the
bottom of the frame rail. Remove the plastic clip and discard.
Repeat procedure on the passenger side.
51. Place a pair of hydraulic floor jacks under the rear differ-
ential. Carefully raise up on the hydraulic floor jacks until
they make contact with the rear differential.
52. Working on the driver side, remove the shock from the
upper and lower location. Save the shock and hardware.
Repeat procedure on the passenger side.
53. Working on the driver side, remove the u-bolts from the
OE location and discard the u-bolts and hardware. Set the
upper and lower u-bolt plates aside for later re-installation.
Repeat procedure on passenger side.
54. Carefully lower down both hydraulic floor jacks at the
same time approximately 3”. Special note: Take special
care not to over extend any brake lines and/or hoses.
Working on the driver side, remove and discard the stock
rear block. Repeat procedure on the passenger side.
55. Locate (2) new 3” lifted blocks. Working on the driver
side, install the new 3” lifted block into the stock location.
Repeat procedure on the passenger side.
56. Carefully raise up on both hydraulic floor jacks at the
same time until the spring assembly sits flush with the newly
installed 3” lifted block.
57. Locate (4) 9/16” x 2 9/16” x 11 5/8” square u-bolts.
Locate (8) 9/16” u-bolt high nuts and (8) u-bolt washers from
hardware bag 916NW. Also, locate the upper and lower u-
bolt plates. Working on the driver side, install the new u-bolts
into the stock location and secure using the new 9/16” high
nuts and washers. Special note: Make sure to re-install
the upper and lower u-bolt plates into the stock location.
If need be, cut off the excess threads off each leg of the
newly installed u-bolts. Torque to 120 ft lbs. Repeat pro-
cedure on passenger side.