What backspacing???

[mean318]

Hello, I was wondering what backspacing my 14" magnum 500's have? Was there a set size or were there more offered? The tires on them are 235/60/14 I have had 245's on them before. The reason I am asking is because I am looking to buy some rims and slicks for this years season and I would like to know what size rim I should buy 4" or 4.5"

 

[dusterdon]

To measure your backspacing lay the wheel face down. Lay a straightedge across the wheel up by the rim on the flat part. Measure down to the surface where the lugnut holes are. That's all there is to it.

 

[HemiPar]

You also ask about 4" or 4.5". that would depend on what size you have now. can't just buy whatever you know.
Jeff