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norton
05-10-2005, 04:19 PM
so being the kinda person who has too much time on their hands, i started looking at differant specs for 33x12.50 M/Ts

got me wondering why breakage happens. is it the actual tire size, or does it have more to do with the wieght of the tire?

dunlop mud rovers - 50lbs
bfg m/t - 64lbs
badyear mtr's - 57lbs
venture m/t - 50
bridgestone - 55lbs

comparably, some of those heavier tires are 48-52ish lbs in the 31x10.50 category.

i dont really have a question, but i'd like to see some input on the subject

later crackies :weedman:

FinlayZJ
05-10-2005, 04:26 PM
Where did you get that data? I have a hard time believing a BFG MT outweighs an MT/R.

norton
05-10-2005, 04:42 PM
tirerack.com

Jim311
05-10-2005, 05:44 PM
I don't think weight has a whole lot to do with it. Larger tires generally mean more traction. Traction breaks parts.

bburgi
05-10-2005, 05:48 PM
Ahh, the internet... the source of all wisdom.

Anyway, there is some validity to the extra weight the vehicle has to push around with larger meats, but I think it has more to do with the larger diameter of the tire. The extra torque that's required to make a larger radius spin still comes from the same size gearing (assuming you haven't upgraded... and if you have then you probably aren't worried about breakage) and that puts extra stress on them.

Combine the two- and throw in the fact that with larger tires you're probably attempting larger obstacles and you've got yourself a prime sitiation for upgrading your crappy axles.

Just my $.02

nate
05-10-2005, 10:10 PM
Those numbers don't seem right. My Q78 TSLs (35.5x11.5) weigh about 60lbs each.

Kraqa
05-11-2005, 12:08 AM
it has to do withthe leverage of the larger radius on the parts IE torque.

thats why gears are required.

i mean don't get me wrong the weight effects it too but not that much. unless your stoppping then it really effects it. why do you think you go with a heavier flywheeel to get better torque.

norton
05-11-2005, 01:11 PM
OK, i was thinking the same stuff. just wanted to get a second (or third..etc) opinion.

BTW, i wasn't thinking of buying 33's yet with my d35. my junk is still stock. I bought it last fall, am buying tools and shit now. will be buying parts buy the fall and will be ready to wheel by next season. im new to the 4x4 thing still. :weedman:

Kraqa
05-11-2005, 02:07 PM
i ran 33's on my 35 just baby it. remember spinning tires arn't that cool if you are running a 35. i idled ofver everything.

and honestly. if your anuything like most of the ZJ guys you WILL trim or cut your fenders. do it now with a 2" lift and run 33x10.5 on 4.75" BS rims. you wont regret it. and you ZJ will go anywhere.

norton
05-11-2005, 05:24 PM
i ran 33's on my 35 just baby it. remember spinning tires arn't that cool if you are running a 35. i idled ofver everything.

and honestly. if your anuything like most of the ZJ guys you WILL trim or cut your fenders. do it now with a 2" lift and run 33x10.5 on 4.75" BS rims. you wont regret it. and you ZJ will go anywhere.

i was actually thinking of doing the 2" and 32x11.50's with appropriate trimming. with about 4" BS rims. i have a 5.2 too and i do more mudding so there is mucho tire spinnage going on. I would like to hit more trails once my shit is bigger though. i have 3.73's.

you still suggest 33x10.50s?

next paycheck im buying a 4 1/2 angle grinder. :smt003 :smt003

Kraqa
05-11-2005, 05:33 PM
i ran 3.73 with the I6 and 33's

i woudl go 33's


get a angle grinder and a saw-z-all

jsteves
05-12-2005, 09:46 PM
next paycheck im buying a 4 1/2 angle grinder. :smt003 :smt003

must not be a very big pay check since a grinder is like 30 bucks :butthead: J/K anyway, go with the 33's...you won't regret it!

nate
05-13-2005, 12:30 AM
Yeah a junk grinder is like $30. One that vibrates the fuck out of your hands and is gutless. Good for your trail bag, not for your shop toolbox IMO. I have used the Black and Decker, Skil, etc grinder and you can tell them from a Millwakee, Makita, Dewalt, etc.

Yeah on cutting the fenders. Like 2 years ago I would have never cut my fenders. I wanted to keep the body stock pretty much. Now here I am cutting all sorts of shit off.... and I like it. :mrgreen:

greenhunter
05-13-2005, 02:05 AM
i run 32s on a bb and the only problems i have are the front bumper (completely off for kevin's rad support), overstuffing with the stock bumpstops and shocks, and pulling out the lip of the front fenders. other than trimming the front bumper (if you want to keep it on), i can't think of anything that needs to be cut, just hammer the wheelwells flat and push up the front fender lips.

norton
05-13-2005, 11:25 AM
next paycheck im buying a 4 1/2 angle grinder. :smt003 :smt003

must not be a very big pay check since a grinder is like 30 bucks :butthead: J/K anyway, go with the 33's...you won't regret it!

:finga: I only work part-time at Blockbuster, so ya my checks aren't that big. I just spent 1/2 my current paycheck on welding crap and my phone bill. I could go out and buy and angle grinder right now ... but then i wouldn't have money for some of my vices, like this thing called food. o ya and some :weedman: and :partyman:

and I already have broken that POS plastic styrofoam thing they call a bumper completely off. looks better without it. I'll build myself something outa tubing once Im good at welding.

how much can I grab some spare 35 shafts for?

robselina
05-14-2005, 10:09 PM
how much can I grab some spare 35 shafts for?

I paid $10 a pair for mine. Most of the time it seems like $20 is the going rate in my club....

Kraqa
05-14-2005, 11:57 PM
i carried 4 with me and i ended up using two on the trail. the other two i couldn't give away.

norton
05-15-2005, 01:51 AM
other than axle shafts ... is there anything I should carry extra that i might break on the 35? or is that the only weakpoint?

Kraqa
05-15-2005, 02:40 PM
spider gears. side gears. you might wana look into one extra axle seal.

and obviously gear oil and RTV.

phillyzj
05-20-2005, 10:44 AM
Those numbers don't seem right. My Q78 TSLs (35.5x11.5) weigh about 60lbs each.

i was curios about this as well, sooo here's the reason:

qsl's are bias right? nylon belts
those are all radials, right? steel belts

steel is more dense than nylon, that's it.

how do you like the q78's? i might need some new tires here perty soon.

The Dude
12-25-2006, 01:36 AM
Are all of those tires the same ply?

Also dunlop=goodyear. goodyear=shit.

theyre probably the same tire with a different mold

JohnBoulderCO
12-25-2006, 02:03 AM
Actually a good question.

You have weight, leverage (diameter) and inertia (rotating mass, weight and geometry) all applying a load on your axle.

Which affects it the most?

Diameter (tire size) usually gives the largest load on the axle. Fill your tires with water and the rotating mass gets big.

Makes sense. Not very often you hear of people breaking axles with 31" tires.
Slap on some 35" AT's and things go pop in your driveway if you have a D35.