F 150 2WD Pickup V8-4.6L SOHC VIN W (1998)
4. Remove the caliper pistons.
1
Place a block of wood between the caliper bridge and the caliper pistons.
2
Apply low air pressure to the fluid port in the disc brake caliper.
3
Force out the caliper piston to the block of wood.
4
Remove the block of wood and the caliper pistons.
5. Remove and discard the piston seals and boots.
6. NOTE: Do not hone the caliper bores. Pistons are not available for honed caliper bores.
If the caliper bores are excessively scored or corroded, install a new disc brake caliper.
Assembly
1. CAUTION: Never reuse piston seals or dust boots.
NOTE: Never reuse brake fluid that has been drained from the hydraulic system or has been allowed to stand in an open container for an
extended period of time.
Lubricate the piston boot, caliper piston, piston sea], and cylinder bores with High Performance DOT 3 Brake Fluid C6AZ-19542-AB or DOT 3
equivalent meeting Ford specification ESA-M6C25-A.
2. Install the caliper pistons.
1
Install the piston seal.
2
Install the piston boot.
3
CAUTION: Be careful not to damage or dislodge the piston seal.
