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Jeep Wrangler YJ
YJ Build Threads & Member's Rides
YJ Axles, should I replace them?
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<blockquote data-quote="Fouledplugs" data-source="post: 427526" data-attributes="member: 18666"><p>The TJ Dana 30 can be modified with chromoly axles to support up to 35 inch tires. The factory YJ Dana 30 front axle is high pinion, so its perfect for a front end. The unit bearings from the factory are nice and easy to replace in a pinch. </p><p></p><p>The only, "downfall," to the YJ Dana 30 is the front axle disconnect which uses a pump to connect the two front passenger side axle shafts. A 1 piece shaft has it benefits over the factory 2 piece. </p><p></p><p>If you're going to keep it on 33's or go up to a 35" max tire size, the Dana 30 should be ok for you, since you mentioned you are just starting out. </p><p></p><p>The rear Dana 35 just doesn't last when a locker is added to the diff. So if you are planning on going that route, I would advocate for a, "Super 35," build. </p><p></p><p>The Super35 is simply a 30 spline locker that replaces the smaller factory 27 spline diff. Once you've upgraded to a 30 spline locker of your choice, you will need 30 spline shafts. Revolution Axle sells a complete kit that includes 30 spline shafts and a locker, with you choosing as Detroit or an ARB air locker. The Revolution kit utlizes Chinese built shafts, if you want American made shafts, choose Dutchman Axle. They offer 30 spline shafts with any lug pattern you desire to include the factory lug pattern to match the front. </p><p></p><p>The 30 spline chromoly shafts are 1.31 inches in diameter versus the 1.18 inch factory shafts. </p><p></p><p>Stick with 1541 material not 4340 when shopping for Dana 35 aftermarket axle shafts. </p><p></p><p>The C-Clip is retained in the, "Super35," build, as it is a non-issue when it comes to the Dana 35 weakness.</p></blockquote><p></p>
[QUOTE="Fouledplugs, post: 427526, member: 18666"] The TJ Dana 30 can be modified with chromoly axles to support up to 35 inch tires. The factory YJ Dana 30 front axle is high pinion, so its perfect for a front end. The unit bearings from the factory are nice and easy to replace in a pinch. The only, "downfall," to the YJ Dana 30 is the front axle disconnect which uses a pump to connect the two front passenger side axle shafts. A 1 piece shaft has it benefits over the factory 2 piece. If you're going to keep it on 33's or go up to a 35" max tire size, the Dana 30 should be ok for you, since you mentioned you are just starting out. The rear Dana 35 just doesn't last when a locker is added to the diff. So if you are planning on going that route, I would advocate for a, "Super 35," build. The Super35 is simply a 30 spline locker that replaces the smaller factory 27 spline diff. Once you've upgraded to a 30 spline locker of your choice, you will need 30 spline shafts. Revolution Axle sells a complete kit that includes 30 spline shafts and a locker, with you choosing as Detroit or an ARB air locker. The Revolution kit utlizes Chinese built shafts, if you want American made shafts, choose Dutchman Axle. They offer 30 spline shafts with any lug pattern you desire to include the factory lug pattern to match the front. The 30 spline chromoly shafts are 1.31 inches in diameter versus the 1.18 inch factory shafts. Stick with 1541 material not 4340 when shopping for Dana 35 aftermarket axle shafts. The C-Clip is retained in the, "Super35," build, as it is a non-issue when it comes to the Dana 35 weakness. [/QUOTE]
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Jeep Wrangler YJ
YJ Build Threads & Member's Rides
YJ Axles, should I replace them?
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