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Unread 10-03-2012, 11:21 AM   #1
goldeagle06
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Hp30

Are the axle shafts and everything other than gears the same in a hp30 compared to a lp30? I know the gears turn opposite.

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Unread 10-03-2012, 11:25 AM   #2
Jason
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R&P are different. Shafts, carrier, etc. are the same between the two.
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Unread 10-03-2012, 11:27 AM   #3
goldeagle06
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Alright thanks. I was wondering because I'm looking to regear my tj and would like to upgrade to a hp30 and I was hoping I could just get the housing somewhere
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Unread 10-03-2012, 11:32 AM   #4
sjones26573
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Depending on what you regear from and to, might beed a new carrier.
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Unread 10-03-2012, 11:34 AM   #5
KingtheZJ
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if you are regearing there is not reason not to move to an hp30.
and ftr, the carrier break is 3.55/3.73. the vast majority of XJ hp30 are 3.55.
the YJ also and an HP30 and gears from those can be found in 4.10 very easily. any other gears are aftermarket
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Unread 10-03-2012, 11:35 AM   #6
goldeagle06
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I have 3:73s now and lookin to go to 4:56 or 4:88.
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Unread 10-03-2012, 11:35 AM   #7
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Quote:
Originally Posted by sjones26573 View Post
Depending on what you regear from and to, might beed a new carrier.
He has 3.73s, which is good for 3.73 and numerically higher. I assume he's not going the other way.
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Unread 10-03-2012, 11:38 AM   #8
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Quote:
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He has 3.73s, which is good for 3.73 and numerically higher. I assume he's not going the other way.
I know the carrier break. I didn't know what his current ratio was.
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Unread 10-03-2012, 11:39 AM   #9
KingtheZJ
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i cant see any reason to pillage the LP30 to build the HP. a LP30 with no gears is worth $10 scrap.

complete hp30 (3.55 gears) - $100
d30 3.73+ carrier - $40
gears - $150
install kit -$120
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Unread 10-03-2012, 11:40 AM   #10
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I know the carrier break. I didn't know what his current ratio was.
Click that little down arrow next to his vehicle type and you would know.
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Unread 10-03-2012, 11:48 AM   #11
goldeagle06
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The hp30 is actually stronger than the lp30 isn't it?
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Unread 10-03-2012, 11:50 AM   #12
KingtheZJ
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yes. ive heard reports that the engineers at dana say the gears in an hp axle can be up to 30% stronger than the same size in an lp setup. it stems from the way the gears mesh and the deflection of the ring gear.
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Unread 10-03-2012, 12:07 PM   #13
goldeagle06
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I was just gonna buy a hp housing and put everything in it from my axle to save some money
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Unread 10-03-2012, 12:14 PM   #14
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Quote:
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Click that little down arrow next to his vehicle type and you would know.
I'm on an iPhone bub.
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Unread 10-03-2012, 12:24 PM   #15
goldeagle06
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Is a hp30 out of a Xj a direst bolt in to my tj or will i have to modify it
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