Article No. 88-13-7

BRAKE - CALIPER "RATTLING" NOISE - VEHICLES BUILT BEFORE 3/01/88

BRAKE - CALIPER PINS - SERVICE REMOVAL TOOL

NOISE - "RATTLE" FROM BRAKE CALIPER - VEHICLES BUILT BEFORE 3/01/88

LIGHT TRUCK: 1983-88 RANGER 1984-88 BRONCO II 1986-88 AEROSTAR, BRONCO, E-SERIES, F-SERIES 1988 F-SUPER DUTY

ISSUE: A "rattling" noise may be heard coming from the front disc brake calipers. The caliper pins may eventually take a set under certain load conditions allowing the disc brake caliper to "rattle". The "rattling" noise is more likely to develop on units that are driven off-road or operated on rough roads.

ACTION: To correct this, install new design caliper pins. A new caliper pin removal tool can be made to aid in removal of the pins. Refer to the caliper pin application chart on this page for the correct service part number.

Figure 8:

Figure 9:

Figure 10:

Figure 11:

The caliper pin removal tool is recommended for use on all the above listed vehicles, including 1988 Super Duty, Figures 8 through 11. This caliper pin tool can be made from a 1/2 inch diameter rod 7 inches long. Simply grind or "V" notch in one (1) end. The "V" notch is used to compress the pin retention tabs while the tool is also used to drive the pin out of the caliper slide groove. This tool replaces a pair of pliers and screwdriver as outlined in the Shop Manual service procedure.

The idea for this tool was submitted for the Best Idea Contest by Joseph L. Kaiser, Bauer Ford Inc., Brookville, Indiana. See "Service Life", Winter 1987 issue for featured article.

CALIPER PIN APPLICATION CHART

Part Number Part Name Vehicle Usage

E8TZ-2C150-A Caliper Pin Super Duty

E8TZ-2C150-B Caliper Pin Ranger, Bronco II,
Aerostar, Bronco,

E-Series, F-Series

PART NUMBER PART NAME CLASS

E8TZ-2C150-A Caliper Pin B
E8TZ-2C150-B Caliper Pin B

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION: 881307A - Both sides
TIME: 0.5 Hr.
DLR. CODING:
Basic Part No. 2C150
Condition Code: 33