The early, M3 type suspension is harder to dismantle because the gudgeon pins have to be withdrawn through the casting unlike the later M4 type which as has been said have caps retaining the pins to allow removal of the innards en masse.
The later M3 tanks had M4 type suspension and many of the Australian M3s are of this type. They were built with them though it is possible to change from one to the other, the bolt pattern being identical.
Sexton actually had it's own bogie design, seemingly the same as Sherman but with limited suspension travel presumably to limit bouncing under high angle fire. They can be identified by the ribs on the outer face getting wider towards the top of the bogie, standard sherman bogies having parallel ribs.
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Adrian Barrell
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