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#1
07-03-2014, 06:26 AM
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74 GTO Rim question
Does any body know the correct Offset and backspacing for 15x7 Pontiac rally wheels that will fit my 74? I tried the 17" route and it has been a big headache, just want to go back to 15x7 and be done with it
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#2
07-03-2014, 10:36 AM
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I believe the backspacing on my 15x7's are 4.25 that are on my 74 GTO. I have never measured the my original 14x6's to see what they were originally.
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#3
07-03-2014, 10:39 AM
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John, what size tires are you running? Any clearance issues?
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#4
07-03-2014, 03:59 PM
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My back tires are 245/60's. I don't have any clearance issues with them. I don't believe I could fit a wider rear tire back there with this particular backspacing. My fronts are 215/65's.
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#5
07-03-2014, 04:08 PM
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74 Rim size
Thanks john, i will look into that, got a picture?
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#6
07-03-2014, 05:37 PM
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Only one I have at the moment. Kind of an old picture.
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#7
07-03-2014, 05:46 PM
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Nice
Looks good John. Thanks for your help
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#8
07-05-2014, 06:21 PM
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When i had Rally II's on mine, i ran 235-60 and they rub a little on the lip, so i trimmed it a bit. My Rallys were 4.25 also, i recently put 15x7 Torq thrust D's and with a 3.75 backspace they rubbed bad. The tire issue on my Ventura has drove me up the wall so i pulling the motor and trans and putting it in my heavier Trans Am.
235-60 with 215-70-15 on front. |
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#9
07-07-2014, 08:33 AM
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Quote:
 No more issues! 
__________________
74 GTO Bracket/Street car and another 74 for the wifey to race with! 70 GTO 400, 4 spd, #'s matching and a little to nice for me to own. Friendship is like peeing your pants..everyone can see it but only you can feel the warmth! |
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#10
07-08-2014, 05:26 PM
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 Quote:
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