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Old 12-12-2009, 10:22 PM   #1
shenk10
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Wheel fitment

I am in the process of fixing up my '82 c10 and am looking at wheels now. I want Boss Motorsports 338s. I would really like to run 20s but am a little worried because they only come as 20x10s. The specs are 6.225" backspacing and +20 mm offset. Is anyone running anything like this or even these?


Another option would be either 18x9.5 or 18x8.
18x8- 4.517" backspacing, +2 mm offset
18x9.5- 5.031" backspacing, -4 mm offset

I am planning on doing about a 4" drop all around so I'm wondering how any of these would fit or recommendations. Thanks

Jordan
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Old 12-13-2009, 01:52 PM   #2
87 Custom Delux
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Re: Wheel fitment

Just bought a set of Coy's that look simular to what you want, 20x10 with 5" b/s and 20x7's with 4.5" b/s up front. They fit like a glove. Pic's comming soon.
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Old 12-13-2009, 04:44 PM   #3
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Re: Wheel fitment

alright thanks, I was going to try to find the spinner center caps for the wheels too, so that they looked like this....

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Old 12-13-2009, 08:23 PM   #4
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Re: Wheel fitment

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Originally Posted by shenk10 View Post
alright thanks, I was going to try to find the spinner center caps for the wheels too, so that they looked like this....

I was going to get the same setup, I ended up with the grey spokes/polished rim from Coy's. Either way back spacing should be the same. Post pic's when you get them on, I'll have some of mine up soon.
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Old 12-14-2009, 02:18 PM   #5
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Re: Wheel fitment

I havent bought them yet, just thinking about it, and idk I think that these might have too much chrome so I was going to go with light grey spokes like you got...can you get the spinner caps for Coys?
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Old 12-14-2009, 03:50 PM   #6
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Re: Wheel fitment

yes coys has a 3 bar spinner like that, I am going to get me some soon!
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Old 12-14-2009, 03:59 PM   #7
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Re: Wheel fitment

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Originally Posted by shenk10 View Post
I havent bought them yet, just thinking about it, and idk I think that these might have too much chrome so I was going to go with light grey spokes like you got...can you get the spinner caps for Coys?

I hear ya about to much chrome, thats why I went with the grey spokes.

I'm sure the chrome would probally look just fine.
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Old 12-14-2009, 04:14 PM   #8
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Re: Wheel fitment

Quote:
Originally Posted by shenk10 View Post
I havent bought them yet, just thinking about it, and idk I think that these might have too much chrome so I was going to go with light grey spokes like you got...can you get the spinner caps for Coys?
You might want to wait unless your truck has 1" wide rotors up front.
The 1.25" wide rotors won't fit the current design of the Boss 338's.
They are redesigning them,... but who know for sure when they will be out.
I've heard anywhere fron 90-120 days.

Here's my original Boss 338 thread:

http://67-72chevytrucks.com/vboard/s...d.php?t=352320.

Read it all and you will see how long people have been waiting.
I'm running the 1" rotors to fix the problem now,... since I already have these wheels.
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Old 12-14-2009, 04:17 PM   #9
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Re: Wheel fitment

Quote:
Originally Posted by shenk10 View Post

18x8- 4.517" backspacing, +2 mm offset
18x9.5- 5.031" backspacing, -4 mm offset

Jordan
Is this the standard b/s and offset for these trucks?? I want the staggered look, with lots of rim showing in the back!!!

I was thinking of doing a fat 17x10 on the back (without sticking out of the fender) and 16x7 on the front. Anyone know what size b/s and offset I need??

Anyone have a picture of their wheels and the specs??
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Old 12-14-2009, 04:44 PM   #10
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Re: Wheel fitment

Here's a pic of my current setup.

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Old 12-14-2009, 04:46 PM   #11
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Re: Wheel fitment

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Here's a pic of my current setup.
Know the offset?? Looks good
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Old 12-14-2009, 04:57 PM   #12
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Re: Wheel fitment

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Know the offset?? Looks good

The back 20x10"s 5" b/s, front 20x7"s I believe 4.25" b/s.
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Old 12-14-2009, 06:59 PM   #13
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Re: Wheel fitment

20x8.5 and 20x10 Boss 338's from my other thread.
Attached Images
  
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Old 12-16-2009, 10:26 PM   #14
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Re: Wheel fitment

wow thanks for letting me know the problem, I had no idea. I was planning on going with upgraded 13" disc rotor set up all the way around, so I don't know if that would make a difference or not? I like them for the same reason because they look almost identical to the Coys and are almost half price.
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Old 12-16-2009, 10:28 PM   #15
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Re: Wheel fitment

oh and some people were saying that the Coys have problems too, Custom Deluxe, you have any problems with the Coys? You said they fit perfect right. I love your truck by the way. That's what I want mine to look like, plan, simple and smooth looking. What kind of drop are you running?
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