Pickup 2WD L4-155 2555cc 2.6L SOHC VIN E 2-bbl (1988)
Brake Proportioning/Combination Valve: Technical Service Bulletins
Brakes - Load Sensing Spring Length
SUBJECT:
TRUCK BRAKES - LOAD SENSING SPRING LENGTH
NO. TSB-88-05-005
DATE July, 1988
MODEL 1988 Truck
TSB Revision:
TSB-88-05-005
PURPOSE
This bulletin clarifies the measurement of the installed length of the load sensing spring in the 1988 Truck Service Manual. Also, a production change in
the length of the load sensing valve body became effective December 1, 1987. The installed-length dimensions for later models are longer than those
used on earlier models. An identification stamp on the end of the valve body enables you to determine which dimension to use. This bulletin shows the
correct method of measuring the distance between the spring attaching points.
MANUAL AND PAGES AFFECTED
In the 1988 Truck Service Manual, Vol. 1, the following pages are affected:
Spring length specifications:
3-18, 5-10, 5-19, 5-36
Spring length illustration:
3-18, 5-19, 5-36
As reference to this bulletin, please write the TSB number in the boxes on pages 3-18, 5-10, 5-19, and 5-36.
FIGURE 1
ILLUSTRATION REVISIONS
Change the spring length illustrations as shown in Figure 1.
