B31 1952- Centre stand

[Bess]

Hi,
    I was looking for a 1952 B31 centre stand (65-4755), I have some centre stands, one is part number 29-4860 which I believe is for a post 1946, C and B range so will fit a B31 of that era.

Has anyone fitted this part to a 1952 B31 plunger model. I notice the spring and distance pieces are interchangeable so I am guessing the stands are also interchangeable? The important physical dimensions seem similar, the older part is cast in one and seem much meatier so the change might have been done to cut production costs.

Any help or thoughts would be welcome.

Thanks...