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58
4.  Bolt the step support (Kit item) 
to mounting channel (Kit item) 
(FIG. 58-1). 
BOLTING SUPPORT TO MOUNTING CHANNEL & 
STEP (LH DUAL STEP & SUPPORT SHOWN)
FIG. 58-1
I-BEAM
(VEHICLE BODY)
5. Butt the fl at part of the mounting 
channel against bottom of vehicle 
rear sill and I-beams. Then, butt the 
step support against back of the 
step (FIG. 58-1). 
LH STEP
STEP SUPPORT
MOUNTING 
CHANNEL
LOCK NUT 
(3 PLACES)
FLAT WASHER 
(3 PLACES)
REAR SILL
6.  Ensure slotted hole in the step sup-
port is lined up with the hole on the 
step (FIG. 58-1). Then, bolt the sup-
port to step (FIG. 58-1). Torque the 
lock nuts (FIG. 58-1) to 105 lb-ft. 
1/2” X 3-1/2” LG. 
FRAME BOLT
(2 PLACES) 
1/2” X 1-1/2” LG 
FRAME BOLT 
STEP 14 - BOLT OPTIONAL STEPS TO 
EXTENSION PLATE - Continued