20/18 Wheel Tire Combo fitment
Been lurking often since I got my car almost a year ago, learning tons!
Looking for some fitment input on the direction I’m considering for wheels/tires.
I currently have 15x7 ralleyes, 255/65/15 rear, 235/60/15 front
I’m very happy with my current stance. I have a Hotchkis drop spring in front, original (sagging?) multi-leaf in rear.
Very slight rubbing on front with sub-frame at full lock.
I’m just finishing up my 4 wheel drum to disc conversion (Right Stuff from Matt’s) and haven’t mounted my wheels again or driven the car yet.
Thinking of going with a 20 rear/18 front combo (don’t need to hear the commentary on considering that choice – I know not all on here like that direction).
Looking at MB Old School wheels
Rear: 255/35/20 on 20x8.5 +7 offset (5” backspace, right?)
Front 225/40/18 on 18x7 0 offset (4” backspace, right?)
These tires are about 1” less diameter than my current on both ends, which should keep my stance and drop my car by ½”.
225/40/18 on 18x7 – from what I can see 7.5 is the recommended minimum width. Will this look goofy? Will it void any warranty?
Rubbing on front – ultimately I’m going with a smaller tire, so think I’m okay but not totally sure how to correctly measure my ralleye backspace to compare confidently. Also wondering if my disc package has pushed out the wheels too much – if my wheels push out it appears I need to worry about rubbing on the lower rear of the fender opening, no?
Is there anything I’m not thinking of??
Appreciate any input/experiences.
69 LM1 RS Vert White/Red – GM Canada documented