big dr

hahahah,, that made me laugh

0V3RK1LL

So... now that we all came to conclusion that im okay with running 37's and a dana 30 for just pavement till i get everything else, would i be able to run just a 1.25 bl with the 37's with stock front/rear bumpers and flares.

1st set-up

1.25BL stock flares and front/rear bumpers with 37's

2nd set-up

1.25BL cut stock flares and stubby front/rear bumper with 37's


out of 1st and 2nd. which one would work? thanks

Ryan0260

You will need more than the body lift to clear the 37's, and also you will want to at minimum install gussets up front, even for only driving on the street

nvertflyer

sorry but i have to strongly disagree.this is not hype but fact.we own 2 jks,one 2 door on 35s and my fully custom built 2wd conversion unlimited on 37s.i built both rigs myself and wheel the crap out of both of them practically every other week.i have had every piece of d30s 44s and 60s in my hands,i have also seen a lot of breakage,even on less difficult stuff,i have seen 44s break on 33s,for starters,the steering is far from strong enough even for street use and its only a matter of time before your sector shaft shears or box breaks all together,dont believe me,look under your rig and have someone turn your steering wheel back and forth and watch your steering box flex.the ball joints on jks internals are made of plastic,they go out extremely fast.most people have wheel shimmy problems even stock not ever knowing its there ball joints until its too late and they come apart.i have seen the front axle housing actually break in half and even if you could get shafts that could handle them your u joints are still way too weak and even if they could take the stress then your ring gear would go,in the rear your tubes will bend over time and your shafts flanges will bend extremely easy. unfortunatly jeep made the fender wells to where you can fit large tires with ease but did not engineer any part of the drive train to handle the stress imposed by those tires

TheTerminator

You are missing a couple points:

1) The Jeep will be driven on pavement only.

2) Hardcore wheelers may run into problems with a D30 and 37's. Those were estimated to be 10% out of entire Jeep population.

I don't think your experiences fall into the 2 above.

Moreover, if you wheel hard enough or simply go crazy, you can break anything, D30, D44, D60, and so on. But does it mean everyone now needs to run and get a PR44/60? Not at all. Especially for street.

Dwight_Pollard706

I think we should all get together a bake cookies

swaite3

I also think your missing something, he is going to run a recentered humvee rim and tire, this setup weights over 65lbs more than a stock rubi setup and up to 75 more than a sport. The extra rotating mass is the problem not the trail, stock parts on the front end are not ment for that kind of unsprung weight

Jeek.OlllllllO

How about i make cookies and you guys donate some money for some prorock 80's for my dd so i can go to the mall!(:

TheTerminator

I'm talking merely about the D30, not steering. I would like to see some evidence that suggests D30 cannot take 37's on street (be it humvee rims/tires). So far it's nothing more but rumors and tales. On the other hand, there is enough evidence to suggest that it will work just fine on street, and even for ~90% of wheeling.

swaite3

Your jeep, do it. I'm not against trying I used to run 35x10.50 bias ply swampers on a sprung over yj with stock d35/d30's I even locked the 35 with a lunchbox locker after I granaded the spider gears on the trail. I spent more time replacing ujoints and bearings than I would like to admit but I had a shoe string budget so that's what I did. I think what saved my shafts was my woefully under geared axles (3.08 )paired with 5speed and carb'd i6 that pumped out maybe 140 hp.
You are running 4.88 gears that are already small on the d30 the new tire combo is going to put a lot of stress on the pinion and ball joints

Like I said run what you have but I think you would be better served selling your 30 while it's still worth something ( before its destroyed) and build something stronger