New gears or send it?

Dawnpatrol

Jesse Higgins
Joined
Apr 25, 2016
Location
Raleigh
Axle specs: YJ Dana 30 with Aussie lunchbox locker, 4.10 gears. Trail Rig (occasional ice cream getter)

It looks like the roll pin on the carrier of my d30 came loose. This allowed for the center pin to come loose and make occasional contact with the pinion gear. I have disassembled the carrier and locker and found the locker and ring gear to be in good shape. The center pin did do damage to the pinion gear, mainly 3 teeth. The worst tooth has damage approximately 0.320" from the face of the pinion gear.

So my question is would you run it in the current condition? Or new gears, which likely means new axle since they came with 4.10s stock.

Also, any ways to ensure the roll pin does not come loose? Tack weld?
 

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If it needs new parts anyway, just go ahead and send it. It's a front-end on a trail rig.
 
If you're trying to do it on the cheap, I'm in Apex and I'll be pulling a 4.10 TJ 30 in the the next ~2 weeks. I'm keeping the shafts, but the don't need the housing and gears.
 
adamk said:
New gears, bearings, center pin and, likely, carrier as I’m sure there’s damage to the cross pin holes.
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That's what I was afraid of. I'll start looking to a complete axle with factory gears.

Jody Treadway said:
Yup. Time for new parts
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In your experience, have you seen many roll pins come loose? Any tricks on preventing it?

jeepinmatt said:
If it needs new parts anyway, just go ahead and send it. It's a front-end on a trail rig.
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Would be a good experiment for the time being, while looking for a new axle. I would need to gring the gear to remove sharp edges and clean everything well.

mcconnell said:
If you're trying to do it on the cheap, I'm in Apex and I'll be pulling a 4.10 TJ 30 in the the next ~2 weeks. I'm keeping the shafts, but the don't need the housing and gears.
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Thanks, but I'm pretty sure all TJs were low pinon, YJs were HP.
 
Update on this.... I decided to listen to everyone's advice and ordered up a master rebuild kit and new roll pin. @Buddy Holly hooked me up with a HP D30 from an XJ that i'll be robbing the gears from. The "new to me" gears seem to be clearly marked with a 0 for pinion depth. However the old pinion doesn't have the most legible marking. I think its a -2? What do you see?
 

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The old gear looks like a sloppy 0 to me. It is an OEM Spicer gear, correct?
If so, assemble with the stock shim thickness INCLUDING the slinger.
 
Jody Treadway said:
The old gear looks like a sloppy 0 to me. It is an OEM Spicer gear, correct?
If so, assemble with the stock shim thickness INCLUDING the slinger.
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I don't think the old/broken gear is an OEM (I don't know the full history). The "new to me" gear has "DANA" stamped on it. The old gear just has "14283 D30-410F" stamped.
 
The old gear is definitely aftermarket in that case. Go back with the shim thickness associated with the old gear and run a pattern. That's your best option at this point
 
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