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Old 02-29-2012, 06:18 AM   #1
97TJAC's Avatar
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Question HP D30 questions

I just picked up a 95XJ hp30 off a guy who was scrapping his XJ

i plan on regearing and putting in a lunch box type locker

while looking for gears and lockers there doesn't seem to be any difference listed between a lp30 and a hp30...
do you typically have to call the parts dealer to let them know u have a HP30

does anyone have any HP30 parts they would like to sell ie.. 4.10 4.56 gear sets/carrier or a lunch box locker


97 Sport
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Old 02-29-2012, 10:47 AM   #2
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Originally Posted by 97TJAC View Post
while looking for gears and lockers there doesn't seem to be any difference listed between a lp30 and a hp30...
do you typically have to call the parts dealer to let them know u have a HP30
There is a major difference between high pinion and low pinion gears. The dealer should list them by application. The carriers are going to be the same.

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Old 02-29-2012, 11:03 AM   #3
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Location: Maine
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the hp uses reverse cut gears, everything else should work, when i did this swap i ordered new gears and reused my ox locker.. heres a link for reverse cut gears...

Jeep Dana 30 Reverse Gears, Install Kits, Ring and Pinions, Spider Gears, Axles, Lockers - Dana 30 Reverse Jeep
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Old 02-29-2012, 11:41 AM   #4
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JeepAddOns.com - Motive Gear & Ten Factory Axle

Lockers are the same, but gears are different. You also get into this with D44, etc. Basically, a low pinion front axle is running on the wrong side of the gears and less strong than a high pinion. Low pinion is better for a rear axle.
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