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Posted

I just picked up a ford 8.8 with 4.10 for my comanche and have a buddy that has a 98 Wrangler axle with 4.10 gears I can get off him and be way cheaper than gearing mine. But am I better off keeping mine or just swapping over for around 100$

Posted

is its a low pinion i wouldnt do it. take the gears out of it yes but the housing no. high pinion, grab it.

 

the axle shafts would be a nice upgrade though. maybe buy it and put gears and shafts in the old high pinion axle

Posted

HP axles are a smigin stronger then the LP30s. But every TJ that rolled off the line had a LP30. Personally, if I could keep the HP I would, but to get the truck on the road, and possibly help out a buddy off load his axle, I would run it.

Posted
is its a low pinion i wouldnt do it. take the gears out of it yes but the housing no. high pinion, grab it.

 

the axle shafts would be a nice upgrade though. maybe buy it and put gears and shafts in the old high pinion axle

HP and LP gears are not interchangeable.

 

LP's use standard-cut gears.

HP's use reverse-cut gears.

 

 

The only thing of value on the TJ D30 is maybe the shafts for the other axle the OP says he has.

 

-Adam

Posted
is its a low pinion i wouldnt do it. take the gears out of it yes but the housing no. high pinion, grab it.

 

the axle shafts would be a nice upgrade though. maybe buy it and put gears and shafts in the old high pinion axle

HP and LP gears are not interchangeable.

 

LP's use standard-cut gears.

HP's use reverse-cut gears.

 

 

The only thing of value on the TJ D30 is maybe the shafts for the other axle the OP says he has.

 

-Adam

 

Thanks for the info looks like I gotta start saving

Posted

If it's cheap enough, I'd run that TJ axle. Is it slightly inferior to a similarly equipped HP axle? sure. Is it the end of the world? heck no. :thumbsup:

Posted
Yes you will need a new carrier as well to run 4.10 gears. The break point for the D30 is 3.73. -Adam

 

Not if you get the "thick" gears.

Posted
Yes you will need a new carrier as well to run 4.10 gears. The break point for the D30 is 3.73. -Adam

 

Not if you get the "thick" gears.

 

 

Are they even available for the D30?

 

I went thick on my D44 but I had to buy a new carrier for my D30

Posted

i would say put in the tj 30. for $100 you can't beat the price, and with having 4.10 I'm guessing your on 31" tires and youll be fine. but its your $$

Posted
Yes you will need a new carrier as well to run 4.10 gears. The break point for the D30 is 3.73. -Adam

 

Not if you get the "thick" gears.

I'm not aware of any "thick" D30 Reverse-Cut gears in the 4.10 ratio (only 4.56). Maybe they are available now but last time we looked for a set nobody was making them that we are aware of.

 

-Adam

Posted

You're probably right Motion. I remember on another forum (NAXJA I think) someone was asking about them and one of their vendors said they had D30 thick reverse cut 4.10 R&P available, but can not find it now.............

Posted
is its a low pinion i wouldnt do it. take the gears out of it yes but the housing no. high pinion, grab it.

 

the axle shafts would be a nice upgrade though. maybe buy it and put gears and shafts in the old high pinion axle

HP and LP gears are not interchangeable.

 

LP's use standard-cut gears.

HP's use reverse-cut gears.

 

 

The only thing of value on the TJ D30 is maybe the shafts for the other axle the OP says he has.

 

-Adam

 

 

 

:doh: brain fart! glad somebody caught it

  • 3 months later...
Posted

Sorry to :hijack: hijack thread but is the dana 30 from the TJ a bolt in affair or is there fabbing involved to make it fit in the MJ? I have similar deal on a local dana 30 from a 98 TJ for $75. My dana 30 is on its way out and this deals kinda hard to pass up. Thanks in advanced.

 

:wrench:

Posted

It's a bolt in. If I was running 33 or smaller tires I would dump a LP30 in my truck for $100 or less.

 

I have a D35 in my truck with 4:56s because it was cheap and they were factory installed in the XJ it came from. I have a D44 waiting to be upgraded to 4:56 once the 5.2 eats the D35.

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