Re: Boss 338 Wheels **GROUP BUY**
 

[/I]No offense taken.
If people are scared to run spacers,... that's their option.
I just don't think people understand or realize what a 6.225" bs means.

I just want everyone to know what they are getting.
I would never run anything other than 8.5's up front and 10's in the rear with these 338 wheels. I always planned to run spacers on the rear.
I also switched to 1" rotors up front because I didn't want to use a spacer up front. (the 5.25" BS on the 8.5's is just barely enough for my liking)

My biggest pet peeve with wheels is the wrong backspace.
In my opinion,... the wheels have to fit the truck.
The offsets have to be different due to the wider track width of the front suspension. (or the rear wheels need to be wider)
Again,... this is just my opinion.

I'll get out of this thread.
I seem to be doing more harm than good.

SCOTI posted alot of good info about running the 20x10's with this 6.225" BS,... and no one seemed to be listening. So I chimed in with the spacer comment.
SCOTI's quote:
My 68 w/the stock 68 12-bolt could use 5-5.50" back-spacing. I installed 5.50"BS wheels that required mini-tubbing the bed floor. Add an additional .725" & it would only be worse. The use of a wider 71-72 rear might work better here but I'm not sure how much clearance would be there.....

The 5.50"BS was about the max I could use on my 74 (w/stock 74 12-bolt). Again, any more back-spacing would require mini-tubbing. There might be a slight chance they'd fit but it would be close.

The easy solution for everyone running a 15x8 ralley wheel, is to go out and see if you have another 2-3/16" or 2-1/4" of room between the inside edge of the wheel and the wheel tub. If you do fine. They will work.
(Just be sure to measure both sides of the truck,... because they are usually different)

Re: Boss 338 Wheels **GROUP BUY**
 

I know what bs is need 5-5.5 but would the larger backspace give it a larger lip? just curious

Re: Boss 338 Wheels **GROUP BUY**
 

I value your opinion...
So in other words this is the reason why one "shouldn't", in your opinion, run 20x8.5 all the way around, unless the individual is planning on running a spacer in the rear, correct?
20x10 will fit in the rear for my truck, I was just thinking of the rotating purposes for the 20x8.5 all the way around, but if it won't look right, then I would rather go with staggered.

Thanks for all the info, lolife that includes you ;)

Re: Boss 338 Wheels **GROUP BUY**
 

Keep in mind, that truck is a 72 which has the wider (by approx .750 each side) rear 12-bolt. That would explain why they fit w/o spacers/adapters vs. the shorter housing from a 6x-70.

Opposite.... more back spacing within the same width of a wheel means less 'lip' on the outside. Less BS = more lip.

I like staggered sizing front to rear. I've never owned a vehicle w/the same width F/R thus have never rotated tires. If you don't mind the same size 8.5" front & rear, they should work w/o spacers. The 20x10's appear to work for the rear of 71-72's w/o issue looking @ the pic of Benji's truck (nice truck @ that).

Re: Boss 338 Wheels **GROUP BUY**
 

Just to jump in and hopefully not cause more problems or sound offensive. I think, as it was said, these wheels were designed more for the 88-98 trucks which is why they work well on them as is. Remember, the track width is different for different years of trucks even among the same body styles.

That being said, the key to getting something that works for you is.....MEASURE YOUR TRUCK. No one knows what you have but you.

Re: Boss 338 Wheels **GROUP BUY**
 

And sometimes not even that. :lol:

Re: Boss 338 Wheels **GROUP BUY**
 

Ha, this is getting good, I think I'll just sit back and drink my coffee and watch the backspace drama continue:mm:

My 20x10's will be here tomorrow, and the new re-tooled 20x8.5's the following day. I'll let you guys know if the 20x10's stuff in my rear ok.

And I have a 72, so I will be no help to the 67-70 guys.

Re: Boss 338 Wheels **GROUP BUY**
 

People like to go staggered to get the widest possible tire on the back of their RWD car/truck to get increased traction and looks.


Here's a simple image that goes over wheel fitment

http://www.getahelmet.com/jeeps/tech...ce/diagram.jpg

Q: How do I measure backspace?
A: The easiest way to measure backspace is to lay the wheel face down onto the ground so the backside of the wheel is facing up. Take a straight edge and lay it diagonally across the inboard flange of the wheel. Take a tape measure and measure the distance from where the straight edge contacts the inboard flange to the hub-mounting pad of the wheel. This measurement is backspace. The following photo shows three wheels with 2", 3", & 4" backspace.

http://centerlinewheels.com/images/backspace.jpg

http://image.fourwheeler.com/f/30470...ackspacing.jpg

and here's a good link with plenty of wheel measurement info

http://www.customtacos.com/tech/index.php?article=40

Re: Boss 338 Wheels **GROUP BUY**
 

no idea on postage to Canada, but if you are interested in a set I can find out for you. Just need your Province, city, and postal code

Re: Boss 338 Wheels **GROUP BUY**
 

i will be ordering a rim from summitracing to make sure the rears fit and then returning it. I want to test fit the 20x10 rear to see if i can fit a 305 40 20 on the rear of my dads 95 silverado. once thats set and checked i will be ordering them from this link.

Re: Boss 338 Wheels **GROUP BUY**
 

ah now I see, Ill wait for Leviticus to get his to make my final decision. sorry you answered at the same time I was responding. Ill send you my info through pm.

Re: Boss 338 Wheels **GROUP BUY**
 

whens the deadline for this deal to? I wouldnt want to miss it :)

Re: Boss 338 Wheels **GROUP BUY**
 

Just went and looked at the prices and I think I can't afford to wait to sell my other set of wheels. I guess I'll sell them to buy tires.

Re: Boss 338 Wheels **GROUP BUY**
 

(See Sublvr72's answer below.)

Re: Boss 338 Wheels **GROUP BUY**
 

I'm collecting orders this week, and I will place them with american eagle by friday.

Future orders are possible, just need to collect a few before I go down there to have them shipped.

Re: Boss 338 Wheels **GROUP BUY**
 

attn all!

18x8 and 18x9.5 chrome are in stock and ready to ship!

Re: Boss 338 Wheels **GROUP BUY**
 

cool, im in as soon as the 20 by 10 and 20 by 8.5s come in on the chrome. I understand you have to run a spacer on the back. Do you have to run 1" rotors in the front or can you run 1 1/4 rotors on a 67?

Re: Boss 338 Wheels **GROUP BUY**
 

Are the 18's in grey available yet?

Re: Boss 338 Wheels **GROUP BUY**
 

18" grey are available in both 18x8 and 18x9.5

Re: Boss 338 Wheels **GROUP BUY**
 

Wow, Im more confused now.. haha

I have a 67, pwr disk brake conversion and 5 lug axles from ECE.

I do NOT have bags as of right now, but I DO WANT THEM SOON!

Will these fit? Im not that scared of spacers/adaptors...but will these work on a 67 if it's bagged (or going to be)???

Im sorry...my trucks in storage and away in (military) training so Im unable to go out and measure my truck right now.

THANKS!!

Re: Boss 338 Wheels **GROUP BUY**
 

when could I expect shipment if i jump in on this? not really worried about it just would like to know an eta....

Re: Boss 338 Wheels **GROUP BUY**
 

I'm going down to place the order Friday morning, so all orders must be in by Thursday before 3:00PM PST if you want them to ship by next week.

Re: Boss 338 Wheels **GROUP BUY**
 

ok after thinking about it, Im in, I just have to transfer the money in my account. Ill be ready to pay tomorrow. Do i just send you my info via PM?

Re: Boss 338 Wheels **GROUP BUY**
 

Just got my order in! Can't wait to get them.:metal:

So maybe this should be a different thread....but who has good tire deals??

Re: Boss 338 Wheels **GROUP BUY**
 

order online, call it in, pm, or email works

Re: Boss 338 Wheels **GROUP BUY**
 

cool man, Ill just send you the info through PM tomorrow. I couldn't pass this up, what I save on what I was going to spend of c5's almost pays for my lowering kit :)

edit: Oh yea..... Id like combo #4 please lol
2-20x8.5 2-20x10 grey

Re: Boss 338 Wheels **GROUP BUY**
 

Plan on pulling the trigger tomorrow when I have the funds in the bank account.

Re: Boss 338 Wheels **GROUP BUY**
 

im in just paid for them 18x8 and 20x10 in grey

Re: Boss 338 Wheels **GROUP BUY**
 

So does that mean the 20's are ready to ship too? I thought they were gonna do the chrome 20's first. Mine are on order from the San Antonio warehouse. Where is evryone else getting theirs from?

Re: Boss 338 Wheels **GROUP BUY**
 

No Chrome 20's yet, just 18's

Re: Boss 338 Wheels **GROUP BUY**
 

That AE blog said the 20's would be the first ones out. I guess not.

Re: Boss 338 Wheels **GROUP BUY**
 

I was wondering how long it would take for rear b/s questions to come up.:lol:

And this whole time, I thought the b/s offered was custom b/s up to 6.225...
I guess they would cost 700+ a rim if that were the case.

Re: Boss 338 Wheels **GROUP BUY**
 

Sublvr72 I sent you a PM asking a couple of Q's about this deal and your website.

Re: Boss 338 Wheels **GROUP BUY**
 

The good news is they're a direct bolt-on for your '00 GMC. :D

Re: Boss 338 Wheels **GROUP BUY**
 

Wait, they don't fit the back without spacers either? Does this apply to the 73-87's I thought it was just the front that wouldn't fit.

Re: Boss 338 Wheels **GROUP BUY**
 

Measure your truck and compare it with the offset of these wheels. Pre-'70 will almost certainly require a spacer. '71-87 rear ends are 3/4" wider on each side (1.5" total) and may not need a spacer, or may only require a thin one rather than the full adapter-style spacer. Only you can determine for sure if you'll need a spacer.

Everyone needs to be clear: the wheels were retooled for a hub fitment issue, not a backspacing problem. If the backspacing was wrong for your application before, it'll be wrong for your application now. Some people used spacers in the past as a workaround for the fitment issue with the front hub, not because it was needed for backspacing.

Brent

Re: Boss 338 Wheels **GROUP BUY**
 

00 GM's are 6-lug.

I can't run more than 5.50"BS on my 74. Anything more & it will rub the inner wheel tub/mounting hardware.

Re: Boss 338 Wheels **GROUP BUY**
 

D'OH! Just snap one off. :lol:

Is it '88-98 that were 5-lug?

Re: Boss 338 Wheels **GROUP BUY**
 

Correct.

Re: Boss 338 Wheels **GROUP BUY**
 

This is pretty much off-topic, but is there a thread anywhere that lists the different rear-end widths for the different years? I've searched the forums and Google with no success. Sure would be nice to have readily available.