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LP D30 to HP D30 swap

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Old 07-28-2012, 07:42 PM
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Default LP D30 to HP D30 swap

i found a low pinion dana30 on a wrecked 2-door and id like to swap it onto my 2000 which has the low pinion d30. do i need to do anything special? i have a 3" lift with stock control arms and just about everything else driveline/suspension
ooooh and im not sure on the 2 door year, but its def pre 97
thanks!
Old 07-28-2012, 07:46 PM
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I'll assume you mean you found a HPd30.

Unbolt lp d30, bolt hp d30 in. Assuming they're matching gear ratio's.
Old 07-28-2012, 07:54 PM
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yeah its a hp d30. dyslexia...

everything ive read says they should have the same gear ratios, just wondering if anyone knew of any oddballs or anything like that. id like to put an aussie locker in it to before i put it on
Old 07-30-2012, 04:15 PM
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i just got the hp D30 for 75$ and they pulled it for me too. that seems likes a good price? i think im going to order an aussie for it tonight and start trussing it tomorow before i paint it
Old 07-30-2012, 04:34 PM
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Originally Posted by War Eagle
i just got the hp D30 for 75$ and they pulled it for me too. that seems likes a good price? i think im going to order an aussie for it tonight and start trussing it tomorow before i paint it
That's a crazy good price. I bought one for $125 and I had to pull it myself.
Old 07-30-2012, 04:38 PM
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VERIFY the gear ratio before you install it. Your transfer case will not be a happy camper if you don't.
Old 07-30-2012, 06:38 PM
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ok free i see how it is......

yeah hopefully theres an axle tag on it...how else could i check? is stamped anywhere? it has an 8.25 on it too and he just said he's gonna pull that too and i can have it too but i already one....
Old 07-30-2012, 07:16 PM
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If there's no tag on the outside u can pull the cover and the ring will be stamped with the ratio
Old 07-30-2012, 07:18 PM
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Look on the ring gear it will say 11-39 or something like that, I did a thread about it like a year ago called easy way to hell your gears. I'm on my phone or I would post the link for you. And I did a HP to lot everything bolted up no prob, just watch your drive shaft Anker sure it still has room to compress.
Old 07-30-2012, 07:45 PM
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how does the drive shaft compress? like clearance above it when the front flexes?
Old 07-31-2012, 04:24 PM
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picked it up and it has the same ratio, holler.

can anyone decode the other numbers or let me in on what they mean?

the dif cover has:
40869
081-5
REV-R
050394

and the tag has:
52069194
3.55
610502-7

im not even sure what year it was off of, it was crashed bad and i didnt get a chance to see the id badge or anything. no vac disconnect either. im going to turn down the rotors too and try to keep them as spares. the dif cover also has sealant on it that is clean...does that mean it was apart not to long ago? or will that red sealant stay clean for awhile?
any info is appreciated
Old 07-31-2012, 04:28 PM
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Originally Posted by War Eagle
ok free i see how it is......

yeah hopefully theres an axle tag on it...how else could i check? is stamped anywhere? it has an 8.25 on it too and he just said he's gonna pull that too and i can have it too but i already one....
i been searching the site there were some threads on this with a couple of problems darn if i can find them so i kept quiet ,one was steering adjustment at pitman arm other was exhaust pipe hitting i believe ....
Old 07-31-2012, 04:29 PM
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Originally Posted by War Eagle
picked it up and it has the same ratio, holler.

can anyone decode the other numbers or let me in on what they mean?

the dif cover has:
40869
081-5
REV-R
050394

and the tag has:
52069194
3.55
610502-7

im not even sure what year it was off of, it was crashed bad and i didnt get a chance to see the id badge or anything. no vac disconnect either. im going to turn down the rotors too and try to keep them as spares. the dif cover also has sealant on it that is clean...does that mean it was apart not to long ago? or will that red sealant stay clean for awhile?
any info is appreciated
try typing them on google yet ?
Old 07-31-2012, 04:30 PM
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i did and i just keep on getting how to tell if its a dana 30 and gear ratio decoders,...im just curious as to what that other stuff pertains to....batch # or factory options?

oooh...

http://www.lunghd.com/Tech_Articles/...and_Ratios.htm

Last edited by War Eagle; 07-31-2012 at 04:49 PM.
Old 07-31-2012, 04:57 PM
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might find the 52 number here....http://www.lunghd.com/Tech_Articles/...and_Ratios.htm


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