Ok were are the guys that speak "rim" will they fit?

[vegas80step]

I really didn't want to post a "will these fit on my truck post"

BUT... I am...

I get the hole +/- offset thing and back spacing... I found the chart and the diagrams... but the rims I'm looking at list things like +18 or -34 (which I assume is in MM) but I don't have my truck. So really it does me no good.

I'm thinking about running American Racing "Nova" (VN701)


Front 18x9 (offset options +24, +35, +45)
Back 20x10 (offset options +18, +35) or a 20x11 +18

on my 1980 stepside, the truck will be bagged with a small C notch. no bed mods. no fender mods.

I'm not trying to lay it out, just as low as it will set and want to keep the tires under my fenders.

Any input? which offset? Anyone running these rims? any input on tire size? I'd like to add a little more rubber on back.

+ = ?????

[lolife99]

The 18x9's need a 6" BS. (+25mm offset)
The 20x10s need at least a 5.5" BS. (0mm offset)

Looks like you could run a +24mm offset up front,... but the rear +18mm offset is going to require you to run spacers.
(or tub the bedside)

Remember,... the stepside beds don't have quite as much room at the fleetside beds.

[vegas80step]

Originally Posted by lolife99

The 18x9's need a 6" BS. (+25mm offset)
The 20x10s need at least a 5.5" BS. (0mm offset)

Looks like you could run a +24mm offset up front,... but the rear +18mm offset is going to require you to run spacers.
(or tub the bedside)

Remember,... the stepside beds don't have quite as much room at the fleetside beds.

Thakns for the info... So do you think the 20x10 w/space will tuck?

[lolife99]

Originally Posted by vegas80step

Thakns for the info... So do you think the 20x10 w/space will tuck?

Yes.
A +18mm on a 10" wide rim is about a 6.25" BS.
You need about a 5.5" BS.
(that's only a 3/4" spacer,... which I don't think anyone makes)
Maybe a 1" spacer would work.

Like I also say,... don't take my word for it.
Break out your tape measure and measure for yourself.

Here's member hot trux' '85 stepside.
These are 20x9.5's with a 5" BS and a 295/40-20 tire on the back.

[72BlckButy]

Keith... didn't hot trux need to run a rear spacer? Or am I mistaken?

[lolife99]

Originally Posted by 72BlckButy

Keith... didn't hot trux need to run a rear spacer? Or am I mistaken?

You are not mistaken.
He listened to someone that told him he needed a 6" BS.
(he has a 1" spacer which equals a 5" BS)

Like I said,... measure for yourself!

[72BlckButy]

I thought this might be a good learning point for others prior to ordering their wheels.

Measure and when you think you've got the right numbers, do it two more times. (If not more...)

[vegas80step]

Originally Posted by lolife99

Yes.
A +18mm on a 10" wide rim is about a 6.25" BS.
You need about a 5.5" BS.
(that's only a 3/4" spacer,... which I don't think anyone makes)
Maybe a 1" spacer would work.

Like I also say,... don't take my word for it.
Break out your tape measure and measure for yourself.

Here's member hot trux' '85 stepside.
These are 20x9.5's with a 5" BS and a 295/40-20 tire on the back.

Great looking truck... thats pretty much the look I'm going for in rim/tire size..
thanks for the info, helps alot... I found these http://www.jegs.com/i/JEGS/555/65053/10002/-1?CT=999

Originally Posted by lolife99

You are not mistaken.
He listened to someone that told him he needed a 6" BS.
(he has a 1" spacer which equals a 5" BS)

Like I said,... measure for yourself!

No way buddy... I'll be like but, but the guy said they would fit....

Originally Posted by 72BlckButy

I thought this might be a good learning point for others prior to ordering their wheels.

Measure and when you think you've got the right numbers, do it two more times. (If not more...)

naw just blame keith.... lol

[Stepper562]

Spacer time.....

[lolife99]

You really need to use this type of wheel spacer.
http://www.ezaccessory.com/Wheel_Ada...5500-5500p.htm

[vegas80step]

So now you want me to worry about my rims staying on my truck??
Man, I can see you sweat the small details..... lol
(Thanks for all the great info buddy)

[muthstryker]

You could always have a 3/4" wheel spacer made that was hub and wheel centric through these guys www.motorsport-tech.com I would install longer studs though. Don't buy cheap adapters, you get what you pay for. And your life would be depending on that cheap product holding your wheels on.

[primrrd]

good info here.
can you explain why the spacers you posted are bad- and where to buy better.
Lo life- with 20's on front- what is the average best backspace?

[muthstryker]

The link that lolife posted, the problem with those is they are not wheel and hub centric. Its important that the wheel be hubcentric so you wont have vibration issues. Basically you would just be relying on the lugs to keep the wheels centered, if you hit a big enough pot hole the wheel can become off center on the lugs. Plus the cheaper Chinese have cracked before.

The link I posted (www.motorsport-tech.com) Can make your adapters/spacers both hub and wheel centric. They will cost more but its worth it for piece of mind. Plus they wont break on you.

[lolife99]

Originally Posted by primrrd

good info here.
can you explain why the spacers you posted are bad- and where to buy better.
Lo life- with 20's on front- what is the average best backspace?

Most squarebody truck owners use what the industry makes.
20x8.5 with a 5.25" BS is a standard size for companies like Coys, and American Racing.
On static dropped trucks,... I like a little more backspacing, (5.5" BS) and bagged trucks I like 5.75" backspacing.
If your truck has a Dropmember or a set of a-arms that narrow the front track width,... you have to re-think these numbers.
Wider front rims make the backspace numbers different yet.

It's all a matter of personal preference, when it comes to how far you "tuck" the wheel.

[1LowToy]

Nice wheel I won't comment on the spacing because when I shop for plumbing it takes 5 trips to the hardware store for two fittings.