OE wheel and tire specs??

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Bob Wilkie

Bob Wilkie

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Can anyone tell me the exact size of OE wheels and tires on a 1970 swinger with the V8?

Wheel diameter, width, offset, and backspace?

Tire width, profile, rating, and overall diameter?
 
Std wheel 14 x 4.5.
Optional wheel 14 x 5.5 with E-70 x 14 tires.
 
I just did a search for "E70/14 tire size conversion" and got a google popup saying the E70/14 is equivalent to a 205/70-14.

It was a link from another sight and if you click on the link it gives conversions for many vintage tire sizes.
 
The car currently has 18x9 245/40R18 rear and 18x8 245/40R18 on front. I have no spare.
I want to fit a new staggered set of wheels and tires on the car and have a spare that fits in the trunk well.
I also want skinnys on the front, but with enough meat on the ground to still corner well enough on the road.
I want Cragar 08/61 or 61C SS wheels in 15"
The rimstires.com fitment calculator tells me I should run 15x8 245/60R15 rear and 15x7 215/65R15 front.
I want to match the OE diameter (25.4") as best as I can to keep the speedometer accurate so I am thinking about 15x8 245/55R15 rear and 15x6 195/70R15 instead.
I figured I would just get a steel wheel for the spare, original 14" or preferably a 15" with a 205/70R15. I THINK that would fit in the trunk well ok.
Do you more experienced guys have any input or feedback you could provide.?
 
Nobody makes a 245/55R15 tire. Might as well go with 235/60R15. They'll probably fit better anyways. You are going to have clearance issues unless you get wheels with the EXACT correct backspacing.
 
69_340_GTS said:
Nobody makes a 245/55R15 tire. Might as well go with 235/60R15. They'll probably fit better anyways. You are going to have clearance issues unless you get wheels with the EXACT correct backspacing.
Click to expand...
I have 245s on it now and there is no room for error so i agree. I haven’t actually searched for tires yet so i was unaware the size was unavailable.
 
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