Hi all i am new here…my question is i have a all stock ‘62 impala and would like to install 15” GM rally wheels ( 15x7”) and the following tire size. 215/70/R15 front and 235/70/15 rear. I want the car to have a little rake so the rear tires are slightly taller. Will they fit without rubbing. Ty Vin
If you don't hear from another 62 owner it's not too hard to work out. The 14" & 15" GM rims will both be neutral backspacing so essentially the rim will be 1/2" wider on both sides while maintaining the exact same center point. Next all you need to do is compare your existing tire specs to those of your new tire sizes & once you know the differences then you can measure for clearance
Are you hard over on achieving the 'rake' via staggering the tire sizes? In my opinion changing springs is a better option. The station wagon springs will raise the rear bumper approx 3" from OEM height.
Are you hard over on achieving the 'rake' via staggering the tire sizes? In my opinion changing springs is a better option. The station wagon springs will raise the rear bumper approx 3" from OEM height.
Do you have a disk brake conversion? That can affect the backspacing needed as some kits for 14" wheels offset the wheel outwards. You need to consider that in your calculations.
several years ago I picked up a mid-80s gbody with extra parts that the owner was going to install for going LeMons racing. and he knew what he was doing as we saw his racing log book for all the settings etc.
anyway, in order to lower the vehicle he spec'd out springs from a completely different vehicle that would fit. he showed me how he did it (which I did not know you could do)
1- he got the initial spring specs for height and size and 'end connector'
2- he then looked up in a complete catalog and sorted out all the springs that had the right style 'end connector' and height he wanted
3- then he checked for the spring rates
I checked this one time myself a year after I bought it from him and it is a valid method (though tedious) but you have to know what you are doing
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