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**Richard** · 10-26-2023, 11:02 PM

The back space on most off the shelf 10" and 12" wheels will be the same at about 4.5" So a 12" wheel would push the tire 2" further out than a 10"
Edit- as far as looks a 15.5" tire looks great on a 12 wheel. Had 38x15.5 on 12" wheels on my 85 with a 10" lift. Not a lot of suspension movement on it so it was fine. A 12" wheel with a big tire can cause frame rubbing with to much backspace and more fender clearance issues when turning at the 4.5"-5" backspace. Just need proper backspacing for fitment. Even with a 10" wheel I am having to do a lot of suspension cycling to determine the tire that I will get and fit on my current 72 build to eliminate any rubbing at full bump.

10-26-2023, 11:02 PM	#7
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,716	Re: Wheel width 10” vs 12” The back space on most off the shelf 10" and 12" wheels will be the same at about 4.5" So a 12" wheel would push the tire 2" further out than a 10" Edit- as far as looks a 15.5" tire looks great on a 12 wheel. Had 38x15.5 on 12" wheels on my 85 with a 10" lift. Not a lot of suspension movement on it so it was fine. A 12" wheel with a big tire can cause frame rubbing with to much backspace and more fender clearance issues when turning at the 4.5"-5" backspace. Just need proper backspacing for fitment. Even with a 10" wheel I am having to do a lot of suspension cycling to determine the tire that I will get and fit on my current 72 build to eliminate any rubbing at full bump. __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746 Last edited by Richard; 10-27-2023 at 03:37 AM.