33x10.50x15 vs. 33x12.50x15

mr x · 03-02-2008, 06:24 PM

I've got a 88 pickup with a 2inch body lift and I was debating options on tires. Right now I have 31x10.50x15s (dry rotted) on American racing wheels and want 33" BFG ATs but defiantly nothing more than that. I'm pretty sure the 33x10.50s will fit no problem. Would the 12.50s need lots of trimming? I suppose I could do some but do not want to make a mess of things. I still have some crank left in my torsion bars too, but that would make the front higher than the rear, and I already have a 2" add-a-leaf in the rear. Not a decision that needs to be made now (need to re-gear first anyway) just wondering.

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4Crawler · 03-02-2008, 06:31 PM

Yes, the 33x10.50s should fit w/ minimal work (if any), assuming a wheel backspacing and width close to stock. The 12.50 will probably need more trimming and/or additional lift:
- http://www.4crawler.com/4x4/ForSale/...it.shtml#FAQ10

Why? Wider tires swing a wider arc while steering and that increases the chances of rubbing.

Matt16 · 03-02-2008, 06:35 PM

For people to give you an answer, you have to tell them the backspacing on the wheel.

tc · 03-02-2008, 08:41 PM

The 10.50's will fit no problem, and have no downside compared to the 12.50 other than limited availability.

Note that if your current rims are narrower than 8", you'll need new rims for the wider tires, which adds considerably to the expense...

mr x · 03-05-2008, 05:37 PM

yea I'll just go ahead and go with the 10.50s.

Sonofmayhem · 03-05-2008, 06:00 PM

I have no lift A/R wheels and brand spanking new 33x10.5s BFG Muds. No rubbing on D.D. and there is slight rubbing on sharp full lock turning up a bump. But the clearance and stance is outstanding. My 4runner is pretty low, and I have skids so I am not worried about too much

yotaman85 · 03-05-2008, 07:35 PM

i run 34-10.50 LTB's on 15x7 spare steels and cranked torsions up front with HD 2inch shackles, the overload removed and a extra leaf and from a 2wd in back and only had to trim back of front fender 1/4 inch. the 33-12.50's will fit fine and have a better foot print then the 10.50's. then i rolled it!!!! know I dont run any fenders. Formula Toy frame, 5.13 gears and 36" goodyear OZ's commin soon! For all running stock suspension the setup i had in the back listed above flexes like crazy but needs a traction bar!!!

norcalsvx · 03-11-2008, 09:06 PM

33x10.50's

Kerm77 · 03-13-2008, 05:52 PM

Well I have got an 86 4x4. I have a set of 265x80x16's swampers that are like brand new! I wanna put then on my TOY. So I am gonna go and get some rims from Summit tomm. Will these work?
http://store.summitracing.com/partde...&view=1&N=700+
I cranked down my torsion bars a little. I have 31x11.50x15's right now and it seems like there is pleanty of room. I am not gonna wheel it too hard right now. Just tryin to make it an arround town truck and huntin buggy. I think I might need a little block lift in the rear tho??

mr x · 03-30-2008, 08:52 PM

finally measured the backspacing today, 3.5 inches

03-02-2008, 06:31 PM	#2 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,828	Yes, the 33x10.50s should fit w/ minimal work (if any), assuming a wheel backspacing and width close to stock. The 12.50 will probably need more trimming and/or additional lift: - http://www.4crawler.com/4x4/ForSale/...it.shtml#FAQ10 Why? Wider tires swing a wider arc while steering and that increases the chances of rubbing. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club Last edited by 4Crawler; 03-02-2008 at 06:37 PM.

03-02-2008, 08:41 PM	#4 (permalink)
tc Contributing Member Join Date: Nov 2005 Location: Longmont, CO Posts: 8,372	The 10.50's will fit no problem, and have no downside compared to the 12.50 other than limited availability. Note that if your current rims are narrower than 8", you'll need new rims for the wider tires, which adds considerably to the expense... __________________ Check out www.coTTORA.org to hook up with great Toyota 'wheelin' folks! Current - 93 4Runner: 3VZ 33"x10.50" no lift ARB F/R 96 Impala SS: My own personal cop car Previous - 89 2WD Pickup 22R, Fabtech "Ivan Dan" lift, 31x10.50, IASCA World Finals 4th Place Stop with the mods and get on the trail! Pix at www.4wheelingoh.shutterfly.com/action

03-05-2008, 06:00 PM	#6 (permalink)
Sonofmayhem Registered User Join Date: Aug 2005 Location: Springs, Colorado Posts: 1,700	I have no lift A/R wheels and brand spanking new 33x10.5s BFG Muds. No rubbing on D.D. and there is slight rubbing on sharp full lock turning up a bump. But the clearance and stance is outstanding. My 4runner is pretty low, and I have skids so I am not worried about too much __________________ 4.3/5.0 Do iT!

03-05-2008, 07:35 PM	#7 (permalink)
yotaman85 Registered User Join Date: Feb 2008 Location: la quinta CA Posts: 71	i run 34-10.50 LTB's on 15x7 spare steels and cranked torsions up front with HD 2inch shackles, the overload removed and a extra leaf and from a 2wd in back and only had to trim back of front fender 1/4 inch. the 33-12.50's will fit fine and have a better foot print then the 10.50's. then i rolled it!!!! know I dont run any fenders. Formula Toy frame, 5.13 gears and 36" goodyear OZ's commin soon! For all running stock suspension the setup i had in the back listed above flexes like crazy but needs a traction bar!!! __________________ IF ANYBODY EVER GIVES YOU CRAP FOR NOT HAVING ENOUGH MODS REMIND THEM "I DONT NEED MODS, I WHEEL A TOYOTA!"

03-11-2008, 09:06 PM	#8 (permalink)
norcalsvx Registered User Join Date: Aug 2006 Location: Alpine--GRASS valley, CA Posts: 2,132	33x10.50's __________________ 1994 toy 22re- http://www.yotatech.com/f86/nocalsvx-s-94-toy-104593/ 2006 Subaru Forester XT -some mods/awd 5spd 1994 Subaru SVX- hwy runner 84 RX7- drag car build

03-05-2008, 05:37 PM	#5 (permalink)
mr x Registered User Join Date: Oct 2007 Posts: 69	yea I'll just go ahead and go with the 10.50s.

03-13-2008, 05:52 PM	#9 (permalink)
Kerm77 Registered User Join Date: Feb 2007 Location: Raymond, Georgia Posts: 6	Well I have got an 86 4x4. I have a set of 265x80x16's swampers that are like brand new! I wanna put then on my TOY. So I am gonna go and get some rims from Summit tomm. Will these work? http://store.summitracing.com/partde...&view=1&N=700+ I cranked down my torsion bars a little. I have 31x11.50x15's right now and it seems like there is pleanty of room. I am not gonna wheel it too hard right now. Just tryin to make it an arround town truck and huntin buggy. I think I might need a little block lift in the rear tho?? __________________ 86 yota pickup 4x4,D.O.A. cam, timing chain, high volume oil pump 94 ferd f-350 4x4 idi diesel 35x12.50x16.5 bf goodrich mt 88 ferd f-350 4x4 gasser on 44 boggers 86 ferd f-250 4x4 6.2l diesel in 2.5 ton axles and 54" michelins and air bags (work in progress!!) 96 mustang gt 4.6l (my girls car) 2004 dodge 3500 dually diesel 4x4 on 22.5" rims and 255/70/22.5 sumitomo 908's nitrous/double stacked chips, 6" stacks, ect,ect,ect, daily driver!!

03-30-2008, 08:52 PM	#10 (permalink)
mr x Registered User Join Date: Oct 2007 Posts: 69	finally measured the backspacing today, 3.5 inches

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