Tuff Country 13090 - GM 11-13 Silverado 3500HD 3.5 lift kit - Manual (Page 3)

Hardware bag 13085NB includes:
Description Quantity
123B (1/2” x 3” bolt) 4
716WA (7/16” USS flat washer) 4
12UN (1/2” unitorque nut) 4
S10237 (.750” x .625” x 2.250” sleeve) 4
9165B (9/16” x 5” bolt) 4
12WA (1/2” USS flat washer) 8
916UN (9/16” unitorque nut) 4
Hardware bag 13085NB1 includes:
Description Quantity
SERT04 (sert fitting) 4
S10238 (.850” x .630” x 2.560 sleeve) 4
MO2617 (poly bushing) 8
Hardware bag 34NW includes:
Description Quantity
SUW-34 (3/4” u-bolt harden washer) 8
34-HN (3/4” u-bolt high nut) 8
Please follow instructions carefully:
Before installation begins, measure from the center of
the hub, to the bottom of the fender well, and record
measurements below.
Pre-installation measurements:
Driver side front:_________________________________
Passenger side front:_____________________________
Driver side rear:__________________________________
Passenger side rear:______________________________
At the end of the installation take the same
measurements and compare to the pre-installation
measurements.
Post-installation measurements:
Driver side front:_________________________________
Passenger side front:_____________________________
Driver side rear:_________________________________
Passenger side rear:______________________________
Front end installation:
1. To begin installation, block the rear tires of the vehicle so
that the vehicle is stable and can’t roll backwards. Safely lift
the front of the vehicle and support both the driver and pas-
senger side with jack stands. Remove the tires and wheels
from both the driver and passenger side.
2. Remove the lower skid plate from the OE location. Save
the lower skid plate and hardware for later re-installation.
3. Place a pair of hydraulic floor jacks under the front differ-
ential. Place one on the driver side and one on the passen-
ger side.
4. Working on the front differential, remove the hardware
attaching all (4) mounting points of the differential the OE
mounts. The OE hardware may be discarded.