Biggest tires with 80" wheelbase? - Pirate4x4.Com : 4x4 and Off-Road Forum

Yeager1 · 05-13-2012, 11:03 AM

What's the biggest tire size people are running with an 80" wheelbase Willys or CJ5 rockcrawler (or similar rig)? I'm on 35's with D44 front and rear on XJ springs- thinking about 37's, just curious what others were running on non-stretched jeeps that still flexed well?

52flattie · 05-13-2012, 08:56 PM

Depends on how much trimming you do I guess. I ran 37s Boggers but they are more like 34s on my flattie with a 80" wheelbase. I now run 38.5 Boggers on a 87" leaf spring stretch but there're like a 36".

Black sheep fabworx · 05-13-2012, 09:09 PM

The biggest Iv ever run on a CJ is a 35 with out stretching it out. They were in the fenders all the time, with about 5" lift.

geberhard · 05-14-2012, 11:51 AM

Moving to Willys forum.

oldtimingman · 05-14-2012, 01:05 PM

35's are biggest I've ever run.

euroford · 05-14-2012, 01:11 PM

i have mine stretched to 84" without modifying the body at all, and though i've swapped in yj springs i don't think it is lifted above stock much if any. currently i am on 32" MTR's and considering going to 33's, though i have to say, the other day i parked next to a jeep sporting a brand new set of 35" MTR's and i don't see much of a reason why those wouldn't be awesome on a rig of my size. might require a touch of rear fender trimming.

I think beyond a 35" tire, a more serious stretch would be in order, but i think a mild stretch and a low suspension would work great up to that point.

Rooney77 · 05-14-2012, 01:34 PM

I have 2.5" bds yj springs on a stock wb cj5 running 33" tsls. I've got metal cloak all the way around so 35s would be possible. Given the wb, I wouldn't go over 35 without stretching.

Peow130 · 05-14-2012, 04:28 PM

80 inch tires before the tires rub eachother

CJ3BWILLYS · 05-14-2012, 07:56 PM

38.5 X 11:00 Boggers, rear fenders trimed. Q buckshots (34"ish) when it was stock with some rubbing.

GreenJeep55 · 05-15-2012, 09:49 PM

Hey Roseburg, Ore. nice looking 3B.

SVARAS · 05-16-2012, 06:56 AM

Quote:

Originally Posted by CJ3BWILLYS

38.5 X 11:00 Boggers, rear fenders trimed. Q buckshots (34"ish) when it was stock with some rubbing.

Couple of bad ass Jeeps

Mieser · 05-16-2012, 07:15 AM

As long as you keep the chassis/body nice and low I don't really think there is much of a limit on tire size vs wheelbase. However, in order to do that you need to move the axles around a little bit to get the tires to clear somewhat fixed points in the chassis.

I kept mine REALLY low with 35" tires, basically only 1" of lift over stock. To do this I raised the front fenders up 2.75" and the rear tubs basically the same amount (and enlarged the rear wheel openings ). The rear axle pretty much HAD to go back 2" to get the front of the rear tire to clear the step on the tub. I moved the front axle forward about 3" but could have probably gotten by with 1-2" if you wanted to avoid all the changes you could.

I wouldn't have any problem going out to 40" tires with enough small modifications to keep the height WAY down.

jeepcj · 05-16-2012, 09:34 AM

I have had 38" Swamper on my 59 cj5 with a spring over

05-13-2012, 11:03 AM	#1 (permalink)
Yeager1 Registered User Join Date: Mar 2012 Member # 213940 Location: Fort Collins, CO Posts: 109	Biggest tires with 80" wheelbase? What's the biggest tire size people are running with an 80" wheelbase Willys or CJ5 rockcrawler (or similar rig)? I'm on 35's with D44 front and rear on XJ springs- thinking about 37's, just curious what others were running on non-stretched jeeps that still flexed well?

05-13-2012, 09:09 PM	#3 (permalink)
Black sheep fabworx 6,000lb diesel ZJ Join Date: Apr 2012 Member # 215954 Location: Co. Springs CO. Posts: 198	The biggest Iv ever run on a CJ is a 35 with out stretching it out. They were in the fenders all the time, with about 5" lift. __________________ Don't let my new join date/post count fool you, Iv been a member for10 years! Those who say it can not be done should not interrupt me when Im doing it!

05-14-2012, 11:51 AM	#4 (permalink)
geberhard Moderator Join Date: Jul 2001 Member # 5861 Location: California Posts: 8,491	Moving to Willys forum. __________________ Help us cure kids cancer! Shave for the cause :) Tips on how to build your Jeep bigger! New build, daily driver TJ on 44" rubbers Project hot 40 year old

05-14-2012, 01:11 PM	#6 (permalink)
euroford Registered User Join Date: Oct 2010 Member # 171057 Location: Louisville, CO Posts: 566	i have mine stretched to 84" without modifying the body at all, and though i've swapped in yj springs i don't think it is lifted above stock much if any. currently i am on 32" MTR's and considering going to 33's, though i have to say, the other day i parked next to a jeep sporting a brand new set of 35" MTR's and i don't see much of a reason why those wouldn't be awesome on a rig of my size. might require a touch of rear fender trimming. I think beyond a 35" tire, a more serious stretch would be in order, but i think a mild stretch and a low suspension would work great up to that point. __________________ 1950 CJ3A Wilma FJ60 axle build in progress 1999 Ford F350 PSD Betty tow pig/adventurmobile

05-14-2012, 04:28 PM	#8 (permalink)
Peow130 Registered User Join Date: Nov 2008 Member # 123919 Location: Spokane, WA Posts: 718	80 inch tires before the tires rub eachother __________________ 98 Tacoma. Chick paintjob and 33's 51' CJ3A/CJV35-U SBF289, Disk swap, SOA, 3speed

05-13-2012, 08:56 PM	#2 (permalink)
52flattie Registered User Join Date: Feb 2012 Member # 211856 Location: Coquille, Oregon Posts: 8	Depends on how much trimming you do I guess. I ran 37s Boggers but they are more like 34s on my flattie with a 80" wheelbase. I now run 38.5 Boggers on a 87" leaf spring stretch but there're like a 36".

05-14-2012, 01:05 PM	#5 (permalink)
oldtimingman Tinkerer Join Date: Jul 2006 Member # 75774 Location: In a van down by the Rogue River, OR Posts: 605	35's are biggest I've ever run.

05-14-2012, 07:56 PM	#9 (permalink)
CJ3BWILLYS Granite Guru Join Date: May 2000 Member # 817 Location: Roseburg OR, USA Posts: 960	38.5 X 11:00 Boggers, rear fenders trimed. Q buckshots (34"ish) when it was stock with some rubbing. Attached Images __________________ 53' willys cj3b. 44's front and rear,t-98,300 c.i. ford six 38" boggers winter, 35" BFG's summer.

05-15-2012, 09:49 PM	#10 (permalink)
GreenJeep55 Registered User Join Date: Feb 2006 Member # 67890 Location: NorCal Posts: 17	Hey Roseburg, Ore. nice looking 3B.

05-16-2012, 07:15 AM	#12 (permalink)
Mieser Registered User Join Date: Jun 2001 Member # 5326 Location: Southwest Colorado Posts: 3,902	As long as you keep the chassis/body nice and low I don't really think there is much of a limit on tire size vs wheelbase. However, in order to do that you need to move the axles around a little bit to get the tires to clear somewhat fixed points in the chassis. I kept mine REALLY low with 35" tires, basically only 1" of lift over stock. To do this I raised the front fenders up 2.75" and the rear tubs basically the same amount (and enlarged the rear wheel openings ). The rear axle pretty much HAD to go back 2" to get the front of the rear tire to clear the step on the tub. I moved the front axle forward about 3" but could have probably gotten by with 1-2" if you wanted to avoid all the changes you could. I wouldn't have any problem going out to 40" tires with enough small modifications to keep the height WAY down. __________________ 42 MB, 225, T18, big kid go cart with clown tires 92 Dodge W250 daily driver on 39s

05-16-2012, 09:34 AM	#13 (permalink)
jeepcj Granite Guru Join Date: Jun 2003 Member # 20502 Location: Rippon, WV Posts: 551	I have had 38" Swamper on my 59 cj5 with a spring over

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