PR44 and PR60 for Jeep JK 37" tires - What Am I Missing?

[Abntroop]

I don't have a picture for you. Basically sideways impact like slipping off of a rock sideways can bend the outer flange on the axle. The flange is the round flat end that your brake rotor attaches to. When it bends the rotor/wheel and such wobbles and causes noises and vibrations.


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Gotcha! Thank you


Matthew
16’ JK Rubicon HR - Wampa

[WJCO]

I keep reading references to bent flanges, and I’m not tracking. Could someone please post a pic and explain?

Here's a thread with info, pics, and video: https://wayalife.com/showthread.php/...e-shaft-flange

[desertrunner]

OP I have a 12' sport 2dr that I originally had on just a set of 4dr springs and 33s when I bought my trail leader package. Get the extra caster on the housing it will set up just fine. I went back and forth on that for a while because I was so low on lift at first and it still works and now works even better that im on 37s and a 3" lift.
I'd also recommend the 1350.
And I have a 6 speed but kinda wish I had 5.13s for the 37s over the 4.88s that I chose. I ran them on 33s to start so 5.13s would have been way too big and the 4.88s has a bigger pinion but if you have 37s already I'd consider 5.13s.

The pure bolt in ability of the SF PR60 is appealing but if you have a good shop to do the gears and locker the trail leader package will save you 1-2k and should be plenty strong for 37s on a 2dr. Or the other option mentioned above get the FF60 rear with 5x5.5 adapters for the PR44 but I would personally pass on the SF60 rear.

If you do the trail leader package the hydro assist bracket will hit your drag link if you are not running a DL flip so I cut mine off when I first set up my front axle. No big deal but know you may have to cut off that bracket or do a DL flip at the same time.

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[Torrin]

Hi Guys,

I have a 2014 2 door JK Sport Auto and about to ditch the front dana 30 and rear 44 for a Dynatrac Prorock 44 front and Prorock 60 rear axles. I have a Metalcloak 2.5" gamechanger lift and CC flat fenders and will be putting on 37" tires.

Here is what I am thinking as far as axles:

PR44
-standard housing (6 degrees of separation like a stock jk axle because I only have a 2.5" lift)
-0.5" wall thickness tubes
-OEM trackbar mount
-4.88 gears
-dynatrac balljoints
-Eaton Elocker 30 spline
-RCV axles 30 spline
-1310 pinion yoke (logic here is this would be the first to break and make for a much easier fix on the trail)

PR60
-4.88 gears
-Eaton Elocker
-1350 pinion yoke
-don't know what else I can customize on the rear axle?

What do you guys think? Does anything stand out to you that I should reconsider?

Thanks!

Welcome to Wayalife - go check in and give us a wave.

If you are not planning on going above 37's, why not got PR44 front with upgraded 35 spline axles on the back. I did the Dynatrac trail leader package, it is a nice kit. The Upgraded D44 in the back will have no problem supporting 37's. I would also suggest upper and lower adjustable control arms in the front. With my PR44, I needed both to really dial in my alignment. As others have said, 1350 is what you want to do for drive shaft on the front. RCVs are nice (I put 80k miles on my old Jeep), but they do pop and make horrible noises after awhile.

[Abntroop]

Here's a thread with info, pics, and video: https://wayalife.com/showthread.php/...e-shaft-flange

Thank you! That was helpful!


Matthew
16’ JK Rubicon HR - Wampa