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Unread 07-22-2010, 10:08 AM   #1
ChrisTJCO
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Just bought a 30/35 combo with 4.10. What am I in for?

I just found a pair of TJ Dana Axles (30/35) with 4.10 gears for $100. I had to jump on them (I have the 3.07s). I am very excited about these - I can't wait to feel the difference with my 31s!

How difficult of an install is this? I installed my lift kit myself, but I've never messed around with axles. These axles are complete, though the brakes aren't great so I'm going to use the brakes from my current axles. Is there a good write-up for this?

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Unread 07-22-2010, 10:11 AM   #2
theducksguts
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Quote:
Originally Posted by ChrisTJCO View Post
How difficult of an install is this?
Personally I don't see this as a difficult install. Use a lot of PB blaster if you are dealing with rust. An impact gun will help save your body too, other wise a breaker bar will work for you.

The front end will be more complicated in the matter of adjusting the toe in and caster. There is a good alignment thread on here somewhere.

You should enjoy the 4.10's.
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Unread 07-22-2010, 10:29 AM   #3
ChrisTJCO
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Personally I don't see this as a difficult install. Use a lot of PB blaster if you are dealing with rust. An impact gun will help save your body too, other wise a breaker bar will work for you.

The front end will be more complicated in the matter of adjusting the toe in and caster. There is a good alignment thread on here somewhere.

You should enjoy the 4.10's.
Cool, thanks - I just read a write-up for the rear axle. It sounds like it's as easy as disconnecting the drivetrain, control arms, sway bar links, trackbar, lower shocks, diff. breathing tube, and brake lines and then dropping the axle.

I also screwed up installing my OME springs (swapped passenger/drivers side front AND rear) so this will be a good opportunity to fix that - plus I shouldn't have to use spring compressors if I've dropped the entire axle, right???
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Unread 07-22-2010, 10:36 AM   #4
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You won't need a spring compressor, attach the upper arms and then put the springs on and jack it up till you can get the lower arms bolted up then reconnect everything else
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Unread 07-22-2010, 10:42 AM   #5
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You won't need a spring compressor, attach the upper arms and then put the springs on and jack it up till you can get the lower arms bolted up then reconnect everything else
Awesome! I'm so excited to have 4.10s instead of my 3.07. I'm assuming I'll see a pretty big increase in power, right?

Wish I could install them this weekend but we're out of town! Rats!
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Unread 07-22-2010, 10:44 AM   #6
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If this is the first time you have ever swapped an axle...figure a weekend. 1 day per axle (give or take 6ish hours per axle) You could bang em both out in a day if you feel like it.

Having done it before (a few times) I can easily bang out a front and rear swap in a few hours as long as the bolts co-operate.
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Unread 07-22-2010, 10:45 AM   #7
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Originally Posted by ChrisTJCO View Post
Awesome! I'm so excited to have 4.10s instead of my 3.07. I'm assuming I'll see a pretty big increase in power, right?

Wish I could install them this weekend but we're out of town! Rats!
Itll be a whole new jeep!
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Unread 07-22-2010, 10:48 AM   #8
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Having done it before (a few times) I can easily bang out a front and rear swap in a few hours as long as the bolts co-operate.
Wanna come over? Haha.

I just did the lift about a month ago, so the bolts should be pretty easy. I'll want to bang this out in a day for sure.
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Unread 07-22-2010, 10:48 AM   #9
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Itll be a whole new jeep!
Woohoo!
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Unread 07-22-2010, 10:59 AM   #10
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Any idea how much these axles weigh?
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Unread 07-22-2010, 11:16 AM   #11
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where did you find them?
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Unread 07-22-2010, 11:27 AM   #12
ChrisTJCO
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where did you find them?
On a Colorado 4x4 site. Incredible deal. Every junkyard I called wanted at least 800 bucks for the combo.
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Unread 07-22-2010, 11:51 AM   #13
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Any idea how much these axles weigh?
over 100 pounds each. I didn't weight it but I bet the rear axle is around 150 pounds.
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Unread 07-22-2010, 12:26 PM   #14
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I can pick up a d30 or 35 and walk around with it...I'd assume about 150 is a good guess.
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Unread 07-22-2010, 12:34 PM   #15
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They're not the lightest things in the world, but not unreasonably heavy...I wouldn't want to be under one when it decided to fall on me, though.

To the OP: it's an easy swap...just take your time and study on it. Disconnect anything that connects it to the frame/driveline, and you're done with removal. Since it's the same thing going back in, you'll have an easy time of it. Just turning wrenches, is all. Technically, no more difficult than changing spark plugs...although somewhat more time consuming. Sell those stock axles and make a couple dollars back, and you'll have re-geared for less than $100! Or, even better...keep them for spare parts.
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swap , swapping , axle , d30 , d35 , dana 30 , dana 35 , install , installation , 4.10 , brakes , tj , wrangler

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