Lug Size/ Offset

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May 17, 2003
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I am buying a set of Eagle 589's for my '70 fj40. I have stock axles, what r the lug patterns. and what offset should i get. I think im doing 33"x12.5"x15" super swamper thornbirds. I am getting 15x10 rims. thanks.
 
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May 17, 2003
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I also would like to know if I could go bigger on my tires. I have seen 2 charts, one said only 33x12.5, and the other one said 35x12.5 i am doing a 4" lift. Thanks
 
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May 17, 2003
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have u ever driven/seen a truck witht hornbirds go through some thick a$$ mud. cause i saw a 66 bronco with 35 thornbirds go through a mud pit with no problem. and it isnt just a mud ppuddle, i mean like a 30 foot long, 12 foot wide, 10 foot deep hole. :p
 
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Mar 1, 2002
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Boise ID
the bolt pattern is 6 lug on 5.5" and standard back space is 3.5"
this is from the Cruiser facts page

15x8 Black Rock Crawler Part number from 4 Wheel Parts Wholesalers - TEC51-5883S3.5
(3.5" is the correct backspacing, don't go messin' with the number)
 
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Mar 1, 2002
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Boise ID
Forgot, I would go with 15x8 rims. I have heard that you want your rim to be 60% as wide as the tire IE 12.5*60%= 7.5 or an 8" rim. Less chance of blowing a bead when aired down.
 
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Jul 5, 2003
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Central, Utah
Get 8" rims. I just switched from 10s because they were to wide in my 12.5s. was always banging them on rocks or popping the bead. The 8s are doing great.
 
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May 17, 2003
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Ok. thanks, im not going to be doing much rock crawling though. here in NJ we have no rocks. lol. i mainly am goin to do mud, water, a whole lot of sand, and mud. so i dont think i ahve to worry too much about hitting them against rocks or anything. thanks
 
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Charleston SC
[quote author=70LCruiser link=board=1;threadid=7591;start=msg63576#msg63576 date=1068939922]
have u ever driven/seen a truck witht hornbirds go through some thick a$$ mud. cause i saw a 66 bronco with 35 thornbirds go through a mud pit with no problem. and it isnt just a mud ppuddle, i mean like a 30 foot long, 12 foot wide, 10 foot deep hole. :p
[/quote]

yes. last weekend. They sucked so much. The truck just slid around. I went through the same places as this dude with 35x14.5 thornbirds. With my little 33x12.5 MT I had less problems than he did.
 
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May 17, 2003
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ok, then what tires do u suggest. i want something that looks tough and is good in mud. i dont want a BFG M/T, maybe a SuperSwamper TSL?? what do u think
 

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