Pinion Bearing bad; upgrade axle? -
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Unread 06-21-2010, 11:48 PM   #1
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1995 ZJ 
Join Date: Jan 2008
Location: Dallas, Texas
Posts: 400
Pinion Bearing bad; upgrade axle?

So my pinion bearing is bad in my D30. I have been told the repair is going to be somewhere around $300-$350. I know I can get a D30 out of the jy for $54 but I really don't want to deal with inspecting the gears and shafts and cleaning rust and swapping them out. My dad has told me he will pay $350 for the repair which means I can spend my money on other things or use his money and my money and get somethin good, and I really want to lock the front. I have heard that an LSD won't really help me very much on rocks, is this true? If so, I can't put in a normal locker due to my TC being a damn 249. I don't have the money to replace my tc and buy a good locker.
What would you guys do in my situation?

short version: My pinion bearing is bad and I want to lock my front axle and I will have $350 from my dad + probably $200-$300 of my money to spend. What should I do?


1995 ZJ Limited
IRO 5.5" Critical Path Long Arms
Armored and Aussie locked
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Unread 06-21-2010, 11:55 PM   #2
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2002 WJ 
Join Date: Feb 2006
Location: Chicago, IL
Posts: 2,243
If you can get a d30 for $54 get it. Get me one too while your at it. It's a really easy swap. Depending on what you want to do you can get an Aussie for $239. You'd still have money left over for other stuff. You could run the Aussie with the 249 if you don't see a lot of snow. Why not take the extra cash and buy a np231. I've seen them as cheap as $100 and it's a fairly easy swap.
2002 Grand Cherokee Limited
1994 Toyota Land Cruiser (camping offload toy)
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Unread 06-22-2010, 12:29 AM   #3
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1997 ZJ 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,793
Well. You'd need a hpd30 with 3.73 gears to make it a worthwhile upgrade for "only" 54$. But since those are rare as hens teeth you'd need to regear, which is a bit more than your budget will allow and leave you with money for a selectable locker.

Take the 350$, buy a 100$ np231, swap input shafts(make sure you buy a 95 or newer case) and put the rest towards that pinion bearing repair and save up for a lock right or aussie. All other options arent gonna be less than 1k$ all told.
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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