TRACK AND SUSPENSION
General Information (Cont):
Roadwheel support arms although they carry different part numbers are physically
interchangeable. Replace shock provisional arms with similar arms if possible.
Drive sprockets, carriers, roadwheels, track, track adjusters and idler wheels are
identical throughout the M113 FOV.
The track idler arm assemblies used will need modified mounting provisions. When
changing the idler arm assembly the spindle must also be changed. The mounting bolt
holes will align with the rosan inserts in the hull if using the updated suspension system
or if using the old parts depending on the vehicle being repaired. The six mounting bolts
will hold the assembly without major problems.
The opposite side idler arm assembly can be used but only the bottom bolt holes
will align. For last resort use only should an idler be used with only two bolts holding
the spindle assembly.