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BOSS 338 rims, Site says no fit, measurements say yes?

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Old 10-31-2010, 08:46 PM
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Default BOSS 338 rims, Site says no fit, measurements say yes?

so here are the measurements of the rims on the ad

4.5 back spacing is too low?

This set of BOSS 338 wheels measure 18" in diameter, with staggered sizes from front to rear.
Front: 18x8 (5 on 4.75) +2mm offset (4.5" Backspace)
Rear: 18x9.5 (5 on 4.75) -4mm offset (5" Backspace)
This package set of wheels is being sold with FREE SHIPPING!
Bolt Pattern is 5 on 4.75"
This is the perfect backspacing for applications such as:
Chevelle, Camaro, Nova, Cutlass, GM A-Bodies, LeMans, 442, etc...
Contact us if you have any fitment questions before buying item!
P/N Front: 338298342
P/N Rear: 338299342

i guess i cant put ebay link on here or a price.. i have searched to find the sizes and i think they will fit.. can i know for sure? i really would like to do something other than TTTs but these are sick

http://cgi.ebay.com/ebaymotors/18x8-18x9-5-Boss-338-Black-Machined-Wheels-5-4-75-_W0QQcmdZViewItemQQhashZitem335e9d1212QQitemZ22063 0684178QQptZMotorsQ5fCarQ5fTruckQ5fWheels

Last edited by ANTICOP RAM AIR; 10-31-2010 at 09:36 PM.
Old 10-31-2010, 09:22 PM
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Offset is wrong for your year vehicle, looks to be right for 3rd gens and such but not the 4ths.
Old 10-31-2010, 09:43 PM
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the offset and backspace isnt out of tolerance... i can go up to 7" inside on the rear so why dont they fit...
Old 10-31-2010, 09:55 PM
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cause these wheels would stick outside of the fenders like 2 inches,
you need between +38mm to +55mm offset for them to fit.
Old 10-31-2010, 10:03 PM
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Originally Posted by BLCKBRD
cause these wheels would stick outside of the fenders like 2 inches,
you need between +38mm to +55mm offset for them to fit.
what is the maximum distance from the contact point on the rotor to the fender? if guys are putting 11" rims on then they have to be at least 4 inches from rotor to fender, give or take an inch... that means that if these rims are 4.5" backspacing and they are 9.5 wide then there is only 5 inches from hub to fender giving them a 38mm.. or 1.5" offset... why no fitment? unless my measurement from rotor contact point to the edge of the fender is wrong.. unless anyone has that measurement...
Old 10-31-2010, 10:26 PM
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the ideal backspacing for a wheel for 4th gens are roughly 7", the wider you go keeping that backspacing of course the remainder will be pushed out to the fender. Its not really so much the offset you are looking for, but the backspacing. Take for example and this is a very rough one using the backspace of some TTII's, that for a 9" wide wheel it comes with a 6.9" back space, so roughly from the mounting point out you will have 2.1" of wheel going towards the fender. On the wheels above for the front, its 8" wide with a 4.5" backspace meaning you will have 3.5" of remaining wheel going towards the fender which is to much and will stick out, same for the rear. Its not so much that they wont fit going in, but they will stick out past your fenders.

But then again this is my understanding of it all, Im not a wheel guru.
Old 10-31-2010, 10:49 PM
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Originally Posted by Tata
the ideal backspacing for a wheel for 4th gens are roughly 7", the wider you go keeping that backspacing of course the remainder will be pushed out to the fender. Its not really so much the offset you are looking for, but the backspacing. Take for example and this is a very rough one using the backspace of some TTII's, that for a 9" wide wheel it comes with a 6.9" back space, so roughly from the mounting point out you will have 2.1" of wheel going towards the fender. On the wheels above for the front, its 8" wide with a 4.5" backspace meaning you will have 3.5" of remaining wheel going towards the fender which is to much and will stick out, same for the rear. Its not so much that they wont fit going in, but they will stick out past your fenders.

But then again this is my understanding of it all, Im not a wheel guru.
hmmm, i thought there was more room from hub to fender than that...
Old 10-31-2010, 10:51 PM
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The rears I know you have a bit of play with, but I don't think you have as much as those require. I'm sure someone else will chime in to correct me.
Old 02-16-2011, 03:23 AM
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Default Boss 338

Just curious but does anyone have pics of these wheels on their 4G? I was thinking about getting a set for my firebird....
Old 07-26-2011, 04:53 PM
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there on a v6 camaro impounded here at my work. i've been thinking about taking em off and doing a slight roll to my fenders haha
Old 07-26-2011, 08:34 PM
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Originally Posted by JohnnyWarfare
[]

there on a v6 camaro impounded here at my work. i've been thinking about taking em off and doing a slight roll to my fenders haha
Nothin a pair of flared fenders can't fix

Last edited by Xsta Z 28; 07-27-2011 at 01:48 PM.
Old 07-27-2011, 10:28 AM
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if your into the dumped/hellaflush look. they'd be ****
i just so happen to be into that look lmao
Old 07-27-2011, 12:39 PM
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I have those wheels you can look at my pic albums and I have some pix of them on my 4 th gen. They do fit perfect on a 3rd gen, but im going find a way to make them look better on the 02
Old 08-08-2011, 01:14 PM
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getting my qp's rolled professionally tonight, then i need to get that body work taken care of. some people shouldnt be allowed to buy bondo





Old 08-08-2011, 02:48 PM
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Eh that looks a tad ridiculous IMO
Old 08-09-2011, 02:18 PM
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I think it looks good....lower it a bit, and fix that front fender!!
Old 08-09-2011, 03:34 PM
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Originally Posted by QIK E
I think it looks good....lower it a bit, and fix that front fender!!
Lower it?!?! He'll be bangin' the quarter panels every time he hits a bump.
Old 08-12-2011, 01:57 PM
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its going to get slp tuned bilstein hd's and eibach sportlines
qp's are going to be rolled, no banging going on here
Old 08-13-2011, 12:53 AM
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i bought some CL for a good deal for my 4th gen but ended up selling them the same week and made $150 extra but they polk out the rear too much and ended up buying some tts2. the boss338 look good when you look at it from the side and i like it cause they were 18s but from the back didnt like it at all. i have some pics if you like to see them..
Old 05-21-2016, 11:44 AM
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Originally Posted by JohnnyWarfare
getting my qp's rolled professionally tonight, then i need to get that body work taken care of. some people shouldnt be allowed to buy bondo





What size wheels are these? Thinking about getting a set for my '94


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