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Unread 10-29-2003, 08:37 AM   #1
NJCJ7
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talk to me about wheels/tires...

so i have a bone stock 85 CJ, and need wheel tire info, like what's stock wheel width, how much tire can i fit unlifted, what's a good width for a wider rim (15 x10, bigger? smaller?) and what size tire should go on that rim, etc. I know very little, i am used to low profile tires on 17" and 18" rims from the stangs... these big beefy tires are new to me... help me out! Thanks...

Also what brand/model tires are good for highway use and frequent, but not hardcore wheeling? Thanks!

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[color=blue][b]1985 CJ7[/color][/b] MC2100,TFI, 2.5" BDS suspension, Full Cage, 31" Mud Tires, 1/2" MORE shackles, Aussie Locked AMC 20
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Unread 10-29-2003, 08:46 AM   #2
jadams68
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Quote:
Originally Posted by NJCJ7
so i have a bone stock 85 CJ, and need wheel tire info, like what's stock wheel width, how much tire can i fit unlifted, what's a good width for a wider rim (15 x10, bigger? smaller?) and what size tire should go on that rim, etc. I know very little, i am used to low profile tires on 17" and 18" rims from the stangs... these big beefy tires are new to me... help me out! Thanks...

Also what brand/model tires are good for highway use and frequent, but not hardcore wheeling? Thanks!

Ok, stock tires are 15x8 with 5 on 5 1/2" bolt pattern and a 4.5" backspacing.
You can stuff 31" tires with no lift.

The BFG All Terrains are good street and mild offroad tires. Good tread pattern, good wear, no noise. You can toss 31"s on to your stock rims with no worries.
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Unread 10-29-2003, 08:46 AM   #3
eight
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Stock wheels are 5.5-8" wide.

Biggest tire you can fit with no mods is 31x10.5 and they'll work good on 15x8 wheels.

BFG mud tires or Goodyear MTRs are generally good for highway and off-road. Or any other mild mud tire. The BFG ATs are the second worst off-road tire I've ever used. And no better on the highway than the muds.
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Last edited by eight; 10-29-2003 at 08:50 AM..
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Unread 10-29-2003, 09:16 AM   #4
only in a jeep cj
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The difference is making the tire work in your situation, and just making it fit. I've seen some Jeeps where the guy put 32's on it (stock springs) and they didn't rub, as long as he never went off road, never turned too hard, and never hit a big bump! on the opposite extreme, my 265 70 R15's will just rub the inner front fender on full stuff (with sway connected) and will miss if the sway bar is disconnected. By being disconnected, the opp tire drops more and pitches the top of the stuffed tire in more and misses the fender edge.
anyway, stock is 235 75 R15 on a 15 by 7 rim. I have run 255 70 R 15, 265 70 R 15 and 31 10.50's , all on the stock rims and like the 265's best. Remember, larger tires will merit lift and your gear ratios will change (mainly if you use the Jeep on the road as a daily driver) this may sound backwards, but my off road appility, was best on the 255's, not the 31's, as my crawl ratio was to high and the Jeeps idle speed was too fast...it bogged down on slight climbs (gearing is 3.31). The 255' and 265's (29 to 30) worked best with my gearing and driving habits. You will need to determine yours.
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Unread 11-03-2003, 12:24 AM   #5
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stock rims 5x5.5 15x8
you can fit 31x10.5
but if you want to off road it stock I would suggest 30x9.5 they will stuff butter and not rub. But if you plan on lifting wait for the tires and get what fits.
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Unread 11-03-2003, 07:31 AM   #6
NJCJ7
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Quote:
Originally Posted by BlackBeast
stock rims 5x5.5 15x8
you can fit 31x10.5
but if you want to off road it stock I would suggest 30x9.5 they will stuff butter and not rub. But if you plan on lifting wait for the tires and get what fits.
I definitely plan on lifting... probably 4", but maybe only 2.5" depending on what i learn about the pros and cons of each. So it makes sense of course to wait for tires...
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Unread 11-03-2003, 11:03 AM   #7
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Actually, another option would be a 15X10, and BFG Builds a 325/60/15 TA/KO All Terrain-
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Unread 11-03-2003, 01:01 PM   #8
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What also has not really bee said yet is that IMHO for a jeep that sees a lot of street, I would go with either 31" or 33", but no taller. Above that requires other mods for best performance and safety. I'm sure someone will chime in about how they run 37" swampers on their CJ with stock brakes, etc., but for a Jeep that is still happy on the street, get a 4" lift, 33" BFG A/Ts, and call it a day. This will still give you good all-around off-road performance (as long as you re-gear).
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