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Old 03-31-2014, 12:53 AM   #1
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88 YJ Axle Swap?

So I've been toying with idea of doing some drivetrain upgrades to my YJ. Should I just swap my gears and install lockers on the factory axles, or install new axles all together. I am running 33" mud tires with a 4 1/2" lift. I do just weekend trail riding with some light mud. Still gets plenty of road miles when the weather is nice enough to drop the top, so I don't want to compromise the drivability of it. Please give me all the suggestions you can.
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Old 03-31-2014, 02:17 AM   #2
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Installing new axles with the gears you want already in them would probably be a easier way to go, Re-Gearing can get pretty expensive and usually is not worth the cost unless you have higher end axles such as a Dana 44 or Ford 8.8.

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Old 03-31-2014, 02:18 AM   #3
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Don't put a locker in a stock 27 spline Dana 35, definitely not with 33" tires. The axle is well known to be weak, will not be able to handle the stress, and it will break. Maybe not right away, but you will significantly shorten the lifespan of the axle and it will break at an inopportune time. Maybe on the trail, maybe while driving down the highway.

The Dana 30 can handle a locker much better than the Dana 35, but the larger the tire, the more stress is put on the axle.

Many people who want to lock the rear axle do a swap to a Ford 8.8 or Dana 44.
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Old 03-31-2014, 02:22 AM   #4
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Quote:
Originally Posted by NonRubicon View Post
Don't put a locker in a stock 27 spline Dana 35, definitely not with 33" tires. The axle is well known to be weak, will not be able to handle the stress, and it will break. Maybe not right away, but you will significantly shorten the lifespan of the axle and it will break at an inopportune time. Maybe on the trail, maybe while driving down the highway.

The Dana 30 can handle a locker much better than the Dana 35, but the larger the tire, the more stress is put on the axle.

Many people who want to lock the rear axle do a swap to a Ford 8.8 or Dana 44.
With 33's he should be safe to put a locker in the 35 if he chooses too. I ran on stock axles in the 35 for about 7 years with a locker and I do a ton of trail and wheeling and I never broke a axle, Although I got a great deal on chromolys so I upgraded.
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axle swap , drivetrain , gears , lockers , yj wrangler

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