2013 JK NOT a Rubicon, NOT going to build this one....

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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by jtice » Mon May 16, 2016 7:20 pm

Nice, didnt know you got RCVs also.
Are you worried at all about the R&P being the weak link now? Always wondered about that with RCVs.

I wouldn't go 37s, you should have a pretty bullet proof setup right now!
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by J-rod » Mon May 16, 2016 7:26 pm

jtice wrote:Nice, didnt know you got RCVs also.
Are you worried at all about the R&P being the weak link now? Always wondered about that with RCVs.

I wouldn't go 37s, you should have a pretty bullet proof setup right now!
Why would you not go 37"

The ring n pinion in a JK is pretty impressive. Even though Slade already chipped one lol
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by jtice » Mon May 16, 2016 8:30 pm

I wasnt saying the R&P were weak, just that with RCVs, they might be the weak link.
Replacing an axle is easier than replacing a R&P.
Having said that,,,, having RCVs and not having to worry about U-Joints would be awesome.

He daily drives his a decent bit, like I do.
Going to 37s robs even more power, I personally would want to beef up the steering, and get it more solid, use a really nice stabilizer.
Just more stress on everything like wheel bearings, knuckles, etc.
I plan on wheeling mine on 35s until I simply cant do the trails I want to.

Tire size is not everything.
Actually,,,, you should get what I am saying,,, per your sig line. ;)
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by SLADE » Mon May 16, 2016 8:41 pm

jtice wrote:Nice, didnt know you got RCVs also.
Are you worried at all about the R&P being the weak link now? Always wondered about that with RCVs.

I wouldn't go 37s, you should have a pretty bullet proof setup right now!

I don't really get into the fear of making the R&P the weak link when you run RCVs. Your either running a big enough axle (R&P) for your tire size and use or you need to upgrade. Before RCV shafts, it seemed like everyone was looking for the toughest shafts and Ujoints that would NOT break without fear of a R&P failure.... RCV shafts come along and all of a sudden the shafts and joints are too strong and everyone is worried about a R&P.

The best reason to choose RCVs over any typical shafts and U joints (regardless of quality or price), is the elimination of U joint bind. being able to have the front end locked and turn to full lock without having the steering wheel want to jump out of your hands is great. U-joints start binding and lose strength the moment they are not straight. The loss of strength multiplies the more the operating angle increase.

I'm actually more worried about the Unit bearings and ball joints than I am about the R&P for running 37's.


Being bullet proof is a big reason for staying with 35's. This setup should take a pile of abuse offroad and plenty of street miles with 35's. 37's on the other hand may require a little more caution with the throttle off-road and will be harder on the steering, ball joints, and unit bearings both on the street and the trail.
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by SLADE » Mon May 16, 2016 8:44 pm

J-rod wrote:
jtice wrote:Nice, didnt know you got RCVs also.
Are you worried at all about the R&P being the weak link now? Always wondered about that with RCVs.

I wouldn't go 37s, you should have a pretty bullet proof setup right now!
Why would you not go 37"

The ring n pinion in a JK is pretty impressive. Even though Slade already chipped one lol

And there's the other side... :lol: There are some running 40's on less axle than what I'll have, so why not run 37's..... I'm more or less setup for 37's so....


But the general consensus is that the JK Dana 30 is good for 35's and the 44 is good for 37's... I already broke a ring gear with 35ish tires and mild wheeling (but some tractor/skidder usage also) so maybe 35's on built 44's is a better match... or the Ring gear failure was a manufacturer defect and I could get by with ripping the guts out of a 44 on 37's...
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2013 JK NOT a Rubicon, NOT going to build this one....

Post by smccollamjr » Mon May 16, 2016 8:50 pm

BluzTJ just chipped a couple ring gear teeth in one of the JK axles under his TJ. I think he's been through a couple axle shafts as well. I don't remember what size tires he's running though.


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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by SLADE » Mon May 16, 2016 8:54 pm

jtice wrote: He daily drives his a decent bit, like I do.
Going to 37s robs even more power, I personally would want to beef up the steering, and get it more solid, use a really nice stabilizer.
Just more stress on everything like wheel bearings, knuckles, etc.
I plan on wheeling mine on 35s until I simply cant do the trails I want to.

Tire size is not everything.
Actually,,,, you should get what I am saying,,, per your sig line. ;)

This is really the root of my thoughts for sticking with 35's. The capability offroad between 35's and 37's is really pretty minimal. The cost to DD performance isn't really worth the mild improvement offroad, so why not just stick with 35's and keep the best of both worlds.

1 of the 37's I'm considering is a Super Swamper TRXUS MT. it's pretty narrow for a 12.50 and weight is average The other tire is a Maxxis Trepador Bias (but is available in a 35 also).
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by jtice » Mon May 16, 2016 9:05 pm

yep all valid points, and I think you will be perfectly fine with 35s as far as strength.
My thoughts exactly on 37s though, you just end up stressing everything just that much more, and end up needing to replace bearings, and things like that more often.
Not always about what will actually break, but being driven on the street, its also about wear and tear.
I would personally rather have a setup on 35s that I knew I could beat on, vs. a setup on 37+ that I thought I needed to baby.

It does amaze me at times what setups some people have beat on and not grenade it the first time out.
Plenty of people beating on D30s and not breaking, I just know my luck, Id shatter one in the Walfart parking lot.
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by J-rod » Tue May 17, 2016 5:55 am

Guess I'm the black sheep as always. Been on 37 for years with a D30 😎
And I daily drive
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by SLADE » Wed Aug 24, 2016 2:17 pm

Here's the 37's

37x12.50R17 Cooper STT Pro on level 8 Tracker wheels with 4.5" Backspacing on a 2013 Jeep JK

Beside a Q78 TSL
Image

Image


Left the 1.75" wheel spacers on. I like the width but will step back to a 1.25" wheel spacer.
Image


Image
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by jtice » Wed Aug 24, 2016 2:46 pm

Very nice. Yea set back in just a haaaaaair more would be about perfect.
Interesting tread design on those tires, with the indents on the sides of the lugs.
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by Dook » Wed Aug 24, 2016 3:01 pm

37s are the new 35... 35s are sooooo last fall....

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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by ken » Wed Aug 24, 2016 6:54 pm

Looking good slade!! Hope to get rid of my 2 wheel toy Friday. Maybe I can soon be on 35s!

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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by SLADE » Wed Aug 24, 2016 8:41 pm

ken wrote:Looking good slade!! Hope to get rid of my 2 wheel toy Friday. Maybe I can soon be on 35s!
Good, I'm anxious for you to get on 35's. If you sell it by Friday, you may be able to get in on Metalcloak's Labor Day sale (hopefully they have one).
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Re: 2013 JK NOT a Rubicon, NOT going to build this one....

Post by Black2000TJ » Wed Aug 31, 2016 9:32 pm

Are those the D rated STT Pro's? If so, any complaints with them so far? I'm planning on getting that exact tire or possibly its Mastercraft variant (courser MXT) in the next few weeks and would love to hear a real world opinion from someone running that tire in that size on a JK.
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