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Tx Firefighter · 10-16-2009, 07:50 PM

3 3/4 backspacing is fine and pretty generic fitment to GM half ton trucks. Most places keep those wheels in stock since they fit non lowered GM trucks from 71-98 model.

It's going to cause the wheel to sit a bit outward and flush with the fender lip. You current wheels look like they likely have about that measurement.

I'd go for 4 to 4.5 inch BS myself to allow lowering in the future without rubbing the fender lip.

10-16-2009, 07:50 PM	#6
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: '72 rims 3 3/4 backspacing is fine and pretty generic fitment to GM half ton trucks. Most places keep those wheels in stock since they fit non lowered GM trucks from 71-98 model. It's going to cause the wheel to sit a bit outward and flush with the fender lip. You current wheels look like they likely have about that measurement. I'd go for 4 to 4.5 inch BS myself to allow lowering in the future without rubbing the fender lip. __________________ I'm on the Instagram- @Gearhead_Kevin