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Old 03-11-2010, 12:00 AM   #1
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locked dana 30?

my friend has a 00 tj on 35s he wants to put a locker in the front end. will the dana 30 hold up with a locker and 35s and stock axle shafts?

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Old 03-11-2010, 02:38 AM   #2
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Sure it will. the front end gets 50% less stress than the rear axle on average. But if hes going to run 35's id recommend he upgrade to a Super 30 or 44.

But if its mostly going to be a DD im sure he'd be fine, but heck if he ever drives through a desert and his front axle breaks im sure he'll be kicking himself in the butt.

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Old 03-11-2010, 03:17 AM   #3
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As long as he doesn't go crazy with it off road, it should be ok. I know several people that do it and it works fine for them. But chromo's in the near future would not be a bad idea
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Old 03-11-2010, 06:58 AM   #4
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It will live, but if the budget allow's consider a selectable front locker.. which will put less stress on the dana30 vs a full time locker. I busted a front stock shaft with 33's and a lock-right. Just make sure to carry spare shafts, u-joints and ball joints along with knowning how to change them out and all will be fine.
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Old 03-11-2010, 10:46 AM   #5
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For most trails, the stock 27 spline axle shafts will hold up to 35" tires and an automatic locker. This is of course providing you stay off the gas when the steering wheel is cranked over which is when the u-joints & ears that hold them are under the greatest stress.

However, if you do pretty tough trails, it's a good idea to upgrade the front axle shafts with hardened 27 spline alloy axle shafts like from Superior Axle. Once those are installed, it's pretty well "bulletproof". Plus by going with 27 spline alloy shafts, you can still keep & use your original OE 27 spline axle shafts as spares, which I doubt you'd need once the hardened alloy axleshafts are in. You could not use your OE axle shafts as spares if you went with a Super 30 kit which uses 30 spline axle shafts.

I broke a front OE D30 axle shaft on Sledgehammer in Johnson Valley years ago on my locked axle with 35" tires. But after upgrading to Warn's hardened 27 spline alloy front axle shafts & hubs, no more problems. Most of the guys I wheel with out there with Dana 30 axles just went with alloy 27 spline shafts which is a good match for the Dana 30's overall strength. My front axle has been very reliable since installing the Warn hardened 27 spline shafts. I personally would not install a Super 30, I'd rather be able to use easily found or existing 27 spline parts as spares.
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Old 03-11-2010, 01:40 PM   #6
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thanks for all the responces. the selectable isnt in the budget right now and neither are the chromo shafts. we do mostly trails in tahoe the rubicon being the hardest and some other trails like deer valley and strawberry pass that are almost passible in 2wd. who sells the cheapest 27 spline upgraded shafts?
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Old 03-11-2010, 01:45 PM   #7
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Originally Posted by chrsr3089 View Post
who sells the cheapest 27 spline upgraded shafts?
The only axle shafts I can recommend any more are made by Superior Axle. Superior Axle & Gear
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Old 03-11-2010, 03:23 PM   #8
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thanks u guys are alot of help

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