Technical > Roo Man's Room

What make rear do I need

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JeffV8:
Roo

That's why I asked.. I saw 2 types of ends.

JeffV8:

What is the overall frame width above the rear end uprites ????

Bruce,

It's 21.5" wide.

dreracecar:
What you need to know now is  the wheel offset and tire bulge also what type of brakes you plan to use. If you are going to use an old H/A/Cragar set with the hat behind the axle flange or a current setup  with the hat over the flange.

A car I am working on now has a wheel (3.5 BS) and tire (bulge) backspace at 5" total
Add 1" (per side for tire/body clearence) for a single side total of 6" (12" overall)
Add that to your 21.5 and you get 33.5"
Olds axle offset is 2.91
Subtract 6" from the 33.5" and what you have left is a housing width of 27.5"
Now- that dimention is for hat behind flange-for hat over flange subtract another .500 from overall(.250 per side)
Add to width of housing any extra tire bulge if exceeds the original 5"

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