GMTRK4
Installation and Operation Manual
PG 25/42
REV: BETA (4/4/2020)
9.
On-Vehicle Mechanical Assembly
Complete following steps on-vehicle using a lift, vehicle ramps, or other safe lifting method.
DANGER:
Follows all manufacturer’s instructions for safely lifting vehicle; reference owner’s manual
.
9.1.
Trim
Driver’s Side OE Leaf Spring Shackle Bolt
9.1.1.
Locate
Driver’s side Leaf Spring Shackle
area directly behind rear tire (i.e., OE rock guard), as shown below.
Figure 13
–
Underbody view of Driver’s side Leaf Spring Shackle Bolt
(2020 Silverado shown)
9.1.2.
Using a Hand Grinder, Hacksaw, or Air Grinder with Abrasive Cut-
off wheel, trim 1/4” off end of
Upper
Shackle Bolt. Remove sharp edges with a file, or similar, then touch up with primer, or auto paint.
WARNING:
ensure use of safety glasses and ear protection while grinding under vehicle.
Figure 14
–
Underbody view of
Driver’s
side Leaf Spring Shackle Bolt trimmed (2020 Silverado shown)
FRONT
Upper Shackle Bolt
Trimmed & Painted
FRON
T
Bed Corner
Trim 1/4”
Shackle Bolt
(Upper)
Leaf Spring
