Wheel Question: Backspacing, Max Size, etc

[Tmwoodall]

So I bought these wheels when I was 17, and the guy told me "They don't fit your truck" we argued back and forth several times and he sold them to me. Technically they fit, on the lugs and over the center dust cap. However I think the rear is off in terms of backspacing, and could be wider to give it a more aggressive stance.

I don't have a good pic of the back, but there is about a 3 inch difference from front face of wheel to edge of fender. Is that a backspacing issue? Or is that totally normal and acceptable?

I think I am going to change up the wheels entirely and get a wider wheel (currently both 20 * 8.5") and maybe increase the profile of the tires. Plus my taste has changed from 17 > 25.

Second question, what is the max size I can run with the ECE 2.25/4" drop on a 72 Axle (already installed)? I have been searching and can't find exactly what I need.

I really like the look of the Boss 338, a LOT. But the fittment issue is going to keep me away until/if they fix that. So I am still searching, and may even drop down to an 18"... Any and all input/pictures would be greatly appreciated.

[todd99]

I am in the market for new wheels as well and I am curious what is the widest tire that will fit in the front?

[Tmwoodall]

Originally Posted by todd99

I am in the market for new wheels as well and I am curious what is the widest tire that will fit in the front?

The 8.5" looks great on the front. May not be the max size but it is a nice fit IMO.

[71gmcburb]

are you running a 6 lug axle? I know boss offers 338s that fit 5 lug here are a set of 338s 20 x 8.5s on the front and 20 x 10s on the rear of a 67 burb and hes running a 4/6 drop (I think)

[Tmwoodall]

1972 5 lug. I thought that the boss' had issues with the disc brakes and dust cap clearing? Maybe I owe myself some more reading...