Georgia Trail Riders Forum

MEMBERS DISCUSSION AREA => General Discussion => Topic started by: Blue J on February 05, 2016, 12:53:12 PM

Title: What gear size are you running?
Post by: Blue J on February 05, 2016, 12:53:12 PM
I was all set on 5.13's for my JKU but I keep reading that they are prone to breakage. I am currently runnin' 35's and may head up to 37's at the next tire purchase. Any advice from the brain trust?
Title: Re: What gear size are you running?
Post by: clark123456 on February 05, 2016, 12:59:28 PM
I was all set on 5.13's for my JKU but I keep reading that they are prone to breakage. I am currently runnin' 35's and may head up to 37's at the next tire purchase. Any advice from the brain trust?

I ran 4.88s in my D30 and Ford 8.8.  I now have 5.13 in the prorock 44 and 60.  I imagine the pinion looks like a small q-tip on the PR44...but so damn sweet while it is working.  I'm running 38" BFG stickies, but I am pretty light on the throttle and I don't 'make it or break it'.  I am looking to go PR60 up front eventually.
Title: Re: What gear size are you running?
Post by: Krawler00 on February 05, 2016, 01:11:07 PM
Well, this debate has been going on for years. I own a TJ and have run 4.88s on my old 30/35 combo with no issues. I now run 4.88s on my waggy 44 and scout 44 rear with no issues on 35's. If you are a heavy footed driver I would opt for the bigger pinion option. But with the lack of torque in the JK motors you would probably be fine on 5.13s and 37's. I think a few guys run that same setup. Tony, Bobby?
Title: Re: What gear size are you running?
Post by: cru9 on February 05, 2016, 01:23:44 PM
I will say if your going to 37's with the stock Dana 30/44 or even 44/44 you need to do a lot more to axles before gears. Trusses, C gussets, chromoly shafts. I am still running 3.73 gears because it's a bigger pinion and thicker metal on Ring Gear. When I go to bigger axles I will go 5.38 gears. I don't heavy foot the skinny pedal and also my Jeep isn't a daily driver but I don't have any complaints on driving it. Also with 37's be ready to buy Hydro Assist steering.
Title: Re: What gear size are you running?
Post by: DOUG on February 05, 2016, 01:44:10 PM
I've been running 5.38's for years in 2 JK's and never had an issue with 37's or 40's when they were on.
Title: Re: What gear size are you running?
Post by: cru9 on February 05, 2016, 01:51:44 PM
With a Dana 30 5.13 is the max
Title: Re: What gear size are you running?
Post by: tjsahara00 on February 05, 2016, 02:06:23 PM
So a JK 30 can hold 5:13's?

I ran 4:56 in my TJ 30 and super 35 with 35'' tires
Now I run 5:13 in Rubi 44's with 37'' tires
Title: Re: What gear size are you running?
Post by: kvom on February 05, 2016, 02:16:58 PM
In a previous Jeep I had 5.13s in Waggy D44 axles on 37s.  Never broke any of the driveline, but it had a 2.5L.
Title: Re: What gear size are you running?
Post by: kent10sne1 on February 05, 2016, 02:58:35 PM
I have 5.13 on my front and it's a d30. No issues yet
Title: Re: What gear size are you running?
Post by: Blue J on February 05, 2016, 03:09:28 PM
The current plan is to sleeve the front, truss the back, add Yukon Co mo axles, i already have C's and recently New ball Joints Thanks to Allsouth/Danny
Then regear (Yukon)and get ARB compressor/yukon Lockers front and rear....oh and get a beefy crossmember.....after that Fenders and maybe different sliders and then Steering assist when I get to 37's

I just want to make sure the 5.13's will hold up
Title: Re: What gear size are you running?
Post by: cru9 on February 05, 2016, 03:23:17 PM
I would truss the front before doing sleeves. A lot stronger.
Title: Re: What gear size are you running?
Post by: Blue J on February 05, 2016, 05:07:59 PM
@PHANTOM  recommended a Sleeve, since the axle would be apart anyways...I am not sure which is best or strongest.
Title: Re: What gear size are you running?
Post by: kent10sne1 on February 05, 2016, 06:32:23 PM
I have truss. Not done sleeves yet. I need to upgrade my axel shafts first
Title: Re: What gear size are you running?
Post by: clark123456 on February 05, 2016, 08:58:11 PM
I would only bother doing one or the other.
I also wouldn't sink a lot of money in a 30.

Trust this statement!!!  At the end you are still not big enough to do the big tires and too small to sell to some other sucker for nearly what you have in it.  Ask me how I know :)
Title: Re: What gear size are you running?
Post by: Mortalis5509 on February 05, 2016, 10:38:47 PM
5.13 will be fine. Greater importance relies on proper set up for them to live.
Title: Re: What gear size are you running?
Post by: Raisinhead on February 06, 2016, 08:49:26 AM
I've been running the same setup for almost 2 years. I've got a heavy JKU  auto on 37 mtrs. I've been trying to keep the components strong (within my budget) because I haven't towed yet. Currently working on that though.

Front:
PR44, 5:13, RCV, ARB

Rear:
Stock 44, artec truss, ARB, Ten Factory shafts
Title: Re: What gear size are you running?
Post by: Jango on February 06, 2016, 01:43:03 PM
I'm running 4:56 in my PR44 up front and stock 44 rear n 35"mtrs and plan to jump to 37s next tire purchase.
Title: Re: What gear size are you running?
Post by: Danny Kinder on February 10, 2016, 12:20:54 PM
I would only bother doing one or the other.
I also wouldn't sink a lot of money in a 30.


​I recommended sleeving the axle purely to save coin. It is a very strong option and you will already have the axle apart, so there isn't much labor to drill and weld. obviously we have several different trussing options too. Both are great options!
Title: Re: What gear size are you running?
Post by: Blue J on February 10, 2016, 01:18:45 PM
I appreciate everyone's input....like my wife was taught on her 1st ride with GATR at Beasley Knob, "they make replacement parts, when things break" and "don't worry about those plastic sliders, they'll rip off eventually"
I'm not sure who I need to thank for that but its probably Bobby or Tony.  //SLAMIN//
Title: Re: What gear size are you running?
Post by: Raisinhead on February 10, 2016, 01:33:54 PM

I appreciate everyone's input....like my wife was taught on her 1st ride with GATR at Beasley Knob, "they make replacement parts, when things break" and "don't worry about those plastic sliders, they'll rip off eventually"
I'm not sure who I need to thank for that but its probably Bobby or Tony.  //SLAMIN//
(http://uploads.tapatalk-cdn.com/20160210/7c215e982cb60a294ceaec4032204d10.jpg)