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help me position TR4A rear suspension bump stop


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Hi all TRists,

 

I a currently converting a TR4 body for a TR4A IRS chassis. I am about to make and weld the rear bump stops in the wheel archs. Since I don't have a TR4A chassis with rear suspensions mounted, I need some clue to work out and position these bump stops.

 

I've made a little drawing which, I hope, will make things clear.

 

bumpstop.jpg

 

What I basically need to know is :

* is the bump stop facing the wheelarch center (as figured) or, if not, where is its axis ?

* what is the orientation of the bump stop from the vertical (angle "a" in degrees). From the pictures I've found it must between 10 to 30 degrees ?

* what is the length "d" of the bump stop ? And if I don't ask too much, its width at the base and at the end ?

 

If anyone of you IRS owners could make these measures for me, that would be of great help

 

best regards

 

Philippe-

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