Tire Dilemma - JeepForum.com
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post #1 of 41 Old 08-17-2017, 03:52 PM Thread Starter
goodjeepyear
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Tire Dilemma

I just bought a '78 CJ7 and it came with 32 11.50 15. No lift and don't want one. Only one option in the 32s. If I go up to 33 or down to 31 I got many options for tires. Can I fit a 33 in those wheel wells with no lift without rubbing?

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'78 CJ7
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post #2 of 41 Old 08-17-2017, 03:57 PM
LumpyGrits
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That doesn't look stock springs etc with those 32's. Think you have long shackles installed.
BFG/AT is a top all around tire. I've run'em for over 25+ yrs, on my '7'.
What's wrong with the tires on it now?
LG

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post #3 of 41 Old 08-17-2017, 04:57 PM Thread Starter
goodjeepyear
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Quote:
Originally Posted by LumpyGrits View Post
That doesn't look stock springs etc with those 32's. Think you have long shackles installed.
BFG/AT is a top all around tire. I've run'em for over 25+ yrs, on my '7'.
What's wrong with the tires on it now?
LG
Well, full disclosure...I work for Goodyear so BFG ain't gonna work. Plus they are weather cracked. One one option at 32 and that's out MTR w/ Kevlar. That's overkill for what I'm doing with it. I want Duratracs and it either 31 or 33 for those.

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post #4 of 41 Old 08-17-2017, 05:46 PM
Matt1981CJ7
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True 31" tires are the largest tire you can run on a stock suspension without rubbing.

FYI, 32" BFG ATs actually are around 30.5" fully inflated when brand new. So, check the manufactures specs before purchasing. The actual diameter isn't always as advertised.

Matt


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post #5 of 41 Old 08-17-2017, 08:29 PM
HillbillyCJ7
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285/75r16 is a 32" tire.
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post #6 of 41 Old 08-17-2017, 08:38 PM
eyedoc
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Originally Posted by goodjeepyear View Post
Well, full disclosure...I work for Goodyear so BFG ain't gonna work. Plus they are weather cracked. One one option at 32 and that's out MTR w/ Kevlar. That's overkill for what I'm doing with it. I want Duratracs and it either 31 or 33 for those.
Tough break...those BFG ATs are all I run on my stuff. They're great tires.

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post #7 of 41 Old 08-18-2017, 05:25 AM
OrangeCJ-5
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Well I guess as long as the paycheck arrives when it is supposed to. I owned a set of Goodyear tires years ago. Biggest pile of garbage I've ever had. Refuse to buy any more from them.

I have 31/10.50R15 on the factory wheels. Stock suspension
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post #8 of 41 Old 08-18-2017, 05:47 AM
keith460
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If you got stock leaf springs then you must have a shackle lift or body lift then. First tires I bought for my CJ back in about 86' were 33" tires with no lift and they rubbed everywhere in the wheel wells. Tried to be cheap and bought extended shackles to give it some lift and that turned out to be a steering nightmare. Didn't know much about negative castor back then and its effect on steering and wound up buying a stiff 4" lift that my kidneys didn't care for. So, 33" tires won't fit unless lifted some. 31" will do with no lift and 32" will clear with either a 1" body lift or 2" suspension lift. Don't think they make a lift under 2.5" which 33" tires would be fine with.
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post #9 of 41 Old 08-18-2017, 06:27 AM
cJAY904
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Great looking jeep, BTW!!
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post #10 of 41 Old 08-18-2017, 10:57 AM
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I'd pay to run BFG's before I'd run another set of Goodyear for free.

That HAS to have a lift, my guess is 2.5L springs

I'd drop down to 31's before I'd try to stuff 33's under there, but it looks like you have 10" wide rims? Also, do you know what gears you have (before trying to go bigger?)

Hoss

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post #11 of 41 Old 08-18-2017, 11:03 AM
LumpyGrits
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Quote:
Originally Posted by goodjeepyear View Post
Well, full disclosure...I work for Goodyear so BFG ain't gonna work. Plus they are weather cracked. One one option at 32 and that's out MTR w/ Kevlar. That's overkill for what I'm doing with it. I want Duratracs and it either 31 or 33 for those.
Sorry to hear that-I was never impressed with GY tires off road. Sidewalls to thin.
Post up some pictures of the springs and shackles.
What's the date code on the tires you have?
LG

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post #12 of 41 Old 08-18-2017, 12:03 PM
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Originally Posted by OrangeCJ-5 View Post
Well I guess as long as the paycheck arrives when it is supposed to. I owned a set of Goodyear tires years ago. Biggest pile of garbage I've ever had. Refuse to buy any more from them.

I have 31/10.50R15 on the factory wheels. Stock suspension
Agree 31s will work without modification. I have a set of Goodyears on my 4WD Escape and so far they have only lasted 90,000 miles and will probably get 100,00 before I have to replace them. I won't buy another set because the car won't last for another 100,000 miles!

Good looking Jeep.

Where in SC?

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post #13 of 41 Old 08-18-2017, 01:17 PM
80cj
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Quote:
Originally Posted by goodjeepyear View Post
Well, full disclosure...I work for Goodyear so BFG ain't gonna work. Plus they are weather cracked. One one option at 32 and that's out MTR w/ Kevlar. That's overkill for what I'm doing with it. I want Duratracs and it either 31 or 33 for those.
BFG AT's are good tires. Too bad Goodyear doesn't make something that's comparable. Are they gonna fire you if you buy BFG tires?
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post #14 of 41 Old 08-18-2017, 01:38 PM
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Quote:
Originally Posted by 80cj View Post
BFG AT's are good tires. Too bad Goodyear doesn't make something that's comparable. Are they gonna fire you if you buy BFG tires?
I imagine it would be like working for Colt and wearing a Ruger to work.
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post #15 of 41 Old 08-18-2017, 01:50 PM Thread Starter
goodjeepyear
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Quote:
Originally Posted by OrangeCJ-5 View Post
Well I guess as long as the paycheck arrives when it is supposed to. I owned a set of Goodyear tires years ago. Biggest pile of garbage I've ever had. Refuse to buy any more from them.

I have 31/10.50R15 on the factory wheels. Stock suspension
Thanks for sharing your thoughts...I guess. Great thing about 'merica, freedom of speech and choice and all that. Sorry they didn't work out for you. A lot of responsibility transfers to the owner after purchase in order to get the tire to meet or exceed it's features and benefits. After reading a lot of threads on here, a lot of people don't really understand tires but at the same time this being an automotive forum, I imagine a lot of people do. Anyway, no harm no foul.

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