Rim width...

[au03z71]

Could I get by with a 20"x10" rim on the back of my 72? I know that an 8.5" is the most forgiving on the front... Also, I want the wheels to be staggered so if I can run a 20"x10" wheel on the rear with a 5.25" b/s, what b/s could I run on the front if I went with a 20"x8.5" wheel for a decent staggered look?

[SCOTI]

20x8.5" w/a 5.25bs for up to a 5/7 drop. Anything more (bagged) & you might want 5.75"bs to tuck them in a little more so the tires won't hit the top of the outside edge of the fender lip.

[au03z71]

Do you think I could get away with a 22"x9"?

Also, what would you suggest for a front b/s for a nice stagger?

Thanks

[SCOTI]

22x9 would be a tight fit in front. It's do-able, but tight. You would need to measure everything per your truck (there's no generic dimensions when it comes to fitting a 6# package in a 5# spot).

[au03z71]

Originally Posted by SCOTI

20x8.5" w/a 5.25bs for up to a 5/7 drop. Anything more (bagged) & you might want 5.75"bs to tuck them in a little more so the tires won't hit the top of the outside edge of the fender lip.

Are you talking about the front or the rear?

[SCOTI]

Originally Posted by au03z71

Are you talking about the front or the rear?

Front.

22x9's will easily fit in the rear. I would measure for verification, but 5.5"bs should be the magic number for the 72 model rear (if everything is centered correctly). 20x10's would be a tight squeeze in factory 67-72 tubs on big-time drops. They'll fit but are going to be close on one side or the other. I used a 5"bs for my 68 & mini-tubbed the tubs < 2" to make sure they wouldn't buzz the outer edge & allow for plenty of clearance on the inner tub. A 72 might not need the mini-tub because the slightly wider width changes the bs needs.

I highly recommend grabbing a plain old steel wheel of a known size & use it as the baseline for determining what will work best on YOUR truck. Once you know the dimensions/bs of your baseline wheel, it's simple addition/subtraction to figure out what you'll need.

[au03z71]

Originally Posted by SCOTI

Front.

22x9's will easily fit in the rear. I would measure for verification, but 5.5"bs should be the magic number for the 72 model rear (if everything is centered correctly). 20x10's would be a tight squeeze in factory 67-72 tubs on big-time drops. They'll fit but are going to be close on one side or the other. I used a 5"bs for my 68 & mini-tubbed the tubs < 2" to make sure they wouldn't buzz the outer edge & allow for plenty of clearance on the inner tub. A 72 might not need the mini-tub because the slightly wider width changes the bs needs.

I highly recommend grabbing a plain old steel wheel of a known size & use it as the baseline for determining what will work best on YOUR truck. Once you know the dimensions/bs of your baseline wheel, it's simple addition/subtraction to figure out what you'll need.

Yeah I know that it's virtually impossible to run greater than a 8.5" wide wheel on the front. I had planned on running a 10" wide wheel on the back and an 8.5" wheel on the front. I know I'll need to measure for appropriate backspacing, I was more worried about the 10" wide wheels on the back than the 8.5" wheels on the front.

[SCOTI]

In that case, they'll fit. Just measure using a baseline wheel & you'll have confidence the dimensions are correct for your truck.

[au03z71]

Awesome man. Thanks for the advice. Sounds like you might have done this once or twice...

Here are the wheels I'm looking at by the way:

http://www.bossmotorsports.com/custo...els.cfm?id=408

[ap2002]

i dont know the difference between 68 & 72 but on mine it has 16x10 in the rear and they tuck all the way in, i believe they are on 4.5" backspace?

[N2TRUX]

Be forwarned that there will be fitment issues on the front with those wheels.

The low profile center cap will not clear your spindle dust cover. The only option I see that "might" work is order the spinners.

Not my first choice for center caps, but I don't see anything else that will work.

[au03z71]

Originally Posted by N2TRUX

Be forwarned that there will be fitment issues on the front with those wheels.

The low profile center cap will not clear your spindle dust cover. The only option I see that "might" work is order the spinners.

Not my first choice for center caps, but I don't see anything else that will work.

Weren't there some clearance issues with Coys too?

[SCOTI]

Originally Posted by au03z71

Weren't there some clearance issues with Coys too?

Yes there were but I've read their newest products for these trucks corrected the issue. The old fixes were to either turn down the snout of the brake rotor hub or add a specer under the center-cap of the wheel. I did the spacer & you couldn't tell it was there unless you looked too see if there was one (I'm that anal).

As for the link you provided on the wheels, what bolt pattern will you be using? I ask this because my initial review of their listing indicates no 20x8.5 in a 5x5 pattern (stock 72 pattern). I also can see they don't offer anything close to the proper back-space requirements for a 72 in the 20x10's (6.225 is too much). That much spacing will require about a 1" billet adapter (which adds to the cost of the wheels....).

[au03z71]

I saw that too... I'm probably going to go with a set of Coys C-5s instead...

[SCOTI]

Originally Posted by au03z71

I saw that too... I'm probably going to go with a set of Coys C-5s instead...

In that case 20x8.5 w/5.25bs & 20x10 w/5.50 are common.

[joe231]

Originally Posted by SCOTI

Yes there were but I've read their newest products for these trucks corrected the issue. The old fixes were to either turn down the snout of the brake rotor hub or add a specer under the center-cap of the wheel. I did the spacer & you couldn't tell it was there unless you looked too see if there was one (I'm that anal).

As for the link you provided on the wheels, what bolt pattern will you be using? I ask this because my initial review of their listing indicates no 20x8.5 in a 5x5 pattern (stock 72 pattern). I also can see they don't offer anything close to the proper back-space requirements for a 72 in the 20x10's (6.225 is too much). That much spacing will require about a 1" billet adapter (which adds to the cost of the wheels....).

Hey SCOTI,
can you point me in the direction of where you read this?

[SCOTI]

I actually read it on here in one of the Coy's wheels threads.

[joe231]

Cool thanks, I look around for it

[N2TRUX]

Scoti as usual you are spot on with your insight. The Boss wheels do not offer a fitment for our trucks unless you go with 18/18 or 18/20s.

Even then the center cap is an issue that hasn't been resolved.