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Unread 12-04-2009, 11:58 AM   #1
crf450ish
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ARB dana 30 high pinion

Is there a difference between the dana 30 high pinon and the low pinon? I keep searching through applications for ARB air lockers for my 91' XJ and all i see for the front is Dana 30, not Dana 30 high pinon. So are they the same? And where is the best place to get ARB air lockers online? thanks

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Unread 12-04-2009, 12:34 PM   #2
skullver
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Quote:
Originally Posted by crf450ish View Post
Is there a difference between the dana 30 high pinon and the low pinon? I keep searching through applications for ARB air lockers for my 91' XJ and all i see for the front is Dana 30, not Dana 30 high pinon. So are they the same? And where is the best place to get ARB air lockers online? thanks
no difference, even the stock carriers are the same but they do have the same carrier breaks for gear sets, 3:54 and down, 3:73 and up. As for best place, I have had good luck with gear sets/tools/install kits etc(don't own a ARB) from Complete Offroad:
ARB AIR LOCKER 3.73 AND UP 27 SPLINE (RD100)

but you may want to hit up some supporting vendors on here for pricing.
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Unread 12-05-2009, 10:46 PM   #3
crf450ish
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i thought the high pinion was reverse cut from the factory? i need clarification here cause i just talked to a guy at a 4x4 shop and he said all high pinion diffs are reverse cut. and why do some say 3.73 and up & 3.92 and up.....what the hell? I am duely confused on this matter.
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Unread 12-05-2009, 11:13 PM   #4
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Originally Posted by crf450ish View Post
i thought the high pinion was reverse cut from the factory? i need clarification here cause i just talked to a guy at a 4x4 shop and he said all high pinion diffs are reverse cut. and why do some say 3.73 and up & 3.92 and up.....what the hell? I am duely confused on this matter.
The gears are reverse cut, the carrier makes no difference its just the gears. 3.92 and up sounds like a dana 44 carrier break. I believe the d30 carrier breaks are 3.55 and down and 3.73 and up... meaning one carrier is for gears 3.73 and up (numerically) such as 4.56s... and 3.55 and down would be for gears like 3.55's or 3.07's.
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Unread 12-06-2009, 01:28 PM   #5
crf450ish
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got it! I have the 10bolt DANA 44 rear end out of an 87' XJ in my 91" XJ along with the STOCK high pinion front diff. so a good way to determine DANA 30 from DANA 44 when dealing with parts is to pay attention to the numerical breaks?
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Unread 12-08-2009, 02:04 PM   #6
crf450ish
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hey does 764 bucks seem sketchy and too low for an ARB air lockers? how do i tell if its a knock off? wont it say? just lookin for feedback

http://www.4wheelerssupply.com/catal...ducts_id/70986
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Unread 12-08-2009, 02:06 PM   #7
nostaw22
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Looks like an ARB to me... Just like the one I've got.

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Unread 12-08-2009, 02:10 PM   #8
crf450ish
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ok. and that a good price im guesssing? since 99.9% percent of everyone i talk to says it costs a grand to get setup with ARB air lockers for each diff.
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Unread 12-08-2009, 02:13 PM   #9
nostaw22
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ok. and that a good price im guesssing? since 99.9% percent of everyone i talk to says it costs a grand to get setup with ARB air lockers for each diff.
I haven't priced them out in a while but that doesn't look unreasonable.

Once you add in the cost of other parts (e.g. the compressor/OBA stuff, which isn't included in that kit) you'll be in for at least $1000...

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Unread 12-08-2009, 02:24 PM   #10
crf450ish
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well you dont have to have an ARB compressor right? cant i just go to wally world and get one of those trunk compressors? sure it wont be as reliable as the 350 ARB
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Unread 12-08-2009, 02:29 PM   #11
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Look on Northridge4x4, David has great prices over there. As far as the compressor goes, as long as you can get the right pressures to the lines and get it to turn on when you need it, then any will be fine... But the ARB compressor comes with a Contura switch and wiring harness. For only $229 for the heavy duty version at Northridge and IIRC $139 for the regular, just get the ARB one!
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Unread 12-08-2009, 02:37 PM   #12
crf450ish
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alright. and that blue tubing that comes with the kit....has anyone ditched that for something better?
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