Ford 2003 Mustang Workshop Manual page 1081

56. Remove the engine dynamic balance shaft.
Remove the bolts.
Remove the balance shaft driven gear, thrust plate and engine dynamic balance shaft as
an assembly.
57. Remove the valve tappets.
1. Remove the bolts.
2. Remove the tappet guide plates and retainers.
3. Remove the valve tappets.
58. Remove the engine balance shaft drive gear.
1. Remove the camshaft keyway.
2. Remove the gear.