I would think for a spare tire which is going to be a low speed application as it is, as long as the intrepid rim doesnt interfere with anything, having the wrong back spacing would be a mirror issue. The bigger issue would then be the centering of the lug nuts, again at low speed applications such that a spare tire should be seeing maybe not a big issue but not sure I would want to take a chance.

I have a 50 dodge truck with 16" wheels,I believe they are 5 on 4.5" as well. But they are narrow steel rims and used bolts instead of studs/nuts as retainers.

Brian

I just did a quick measurement with a tape measure and the rim appears to be a 5" with about 3.75" to 4" backspace.

_________________
1971 D100 SWB Step side, 225, 3 on the tree, 3.91 gear

Does that mean that Prowler wheels would fit?

_________________
'15 Chrysler 200S V6
'74 Duster 360, factory 4 speed car