C 20 3/4 Ton Pickup 2WD V8-350 5.7L VIN L 4-bbl (1983)
FIGURE #1 - REAR SUSPENSION
6.
Disconnect brake pipes from height sensing valve and brake hose, and discard short brake pipe. Reference Figure #1.
7.
Remove and discard height sensing valve, bracket and bolts.
8.
Carefully reposition the rear brake pipe, and connect it to the rear brake hose.
9.
Remove the brake combination valve per section 5 of the Light Duty Shop Manual.
10.
Select and install a replacement combination valve, based on the vehicle wheelbase and type of rear wheels, from the chart below:
Valve Part
Wheelbase
Rear Wheel Type
Valve Code
Number
131/135
Single
DD
1257200
131/135
Dual
EE
1257203
159/164
Single
1257203
159/164
Dual
P
1257087
11.
Bleed and test brake system per Section 5 of the Light Duty Shop Manual.
