F 450 2WD Super Duty V10-6.8L VIN S (1999)
4. Remove the piston seals and boots.
1
Remove the piston boot retainer.
2
Remove and discard the piston boots and seals.
5. NOTE: Do not hone the caliper bores. Pistons are not available for honed caliper bores.
If the caliper bores are excessively scored or corroded, replace the disc brake caliper.
Assembly
CAUTION: Never reuse piston seals and 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.
1. Lubricate the piston boot, caliper piston, piston seal and caliper bores with clean High Performance DOT 3 Brake Fluid C6AZ-19542-AB or
equivalent DOT 3 fluid meeting Ford specification ESA-M6C25-A, PM-1 (Canada CPM-1).
2. Install the caliper pistons.
1
Install the piston seal.
2
Install the piston boot on the piston.
3
CAUTION: Be careful not to damage or dislodge the piston seal.
Insert the caliper piston.
4
CAUTION: Be careful not to cock the caliper piston. Position the boot in the bore, and press the caliper piston into the bore.
