Run it. That pattern is fine.So, the Dana 60 is buttoned up. I forgot to add the thrust washer, so I reset the pinion pre-load because it was a lot higher than the spec allowed and now it's at exactly 30lb-in.
Tossed the hydro ram and freshly-painted tie rod on there for motivation. :laughing:
I figured now would be a good time to refresh the front leaves, too. The rears were done a few months ago, so no need to mess with those.
I'm going to try getting the front axle back in tonight, but we'll see how long it takes to get the new PSC ram plumbed since it uses AN fittings and hoses instead of NPT fittings.
Focus then moved to the 14b. I mentioned before that I'd spun a bearing on the old 14b. I was able to get a used one from someone I follow on IG (not sure if he's on Pirate). I also took the opportunity to swap pinion support housings to a 1988+ support with the larger inner pinion bearing. When I put the factory-disc rear end in my truck, I swapped the carrier and pinion housing all together from my 1979 axle because it was easy.
Aside from the bigger inner pinion bearing, the other benefit (or maybe a downside to some) is that the pinion seal becomes a two-piece deal. It's definitely more annoying to replace or service, but I do expect that it would last a lot longer. The yoke side of the seal actually includes a speedi-sleeve style seal.
I replaced the carrier bearings and both pinion bearings when I put everything back together. Got the locker swapped over, ring gear installed, and pinion pre-load set. This is my new favorite way for torquing ring gear bolts, by the way:
Public service announcement... always take out your carrier pre-load adjusters and clean behind them! Pretty sure the large chunk was kept in place by the threads, but still scary to think that would've been sealed within the differential.
Long story short with the 14b gear setup is that I'm currently at zero pinion shim and .008" backlash and have what I'd consider an acceptable, but not perfect pattern. To go any deeper on pinion depth, I'd need to tear the pinion support back apart and shim between the pinion head and inner pinion bearing, but I'm not sure it's worth doing this with the pattern I currently have. My only hangup with this pattern is that it's really close to the top of the tooth. Otherwise I see a wide contact patch that does go pretty deep.
What say you, Pirate?
I am waiting on a replacement pilot / 3rd bearing for the pinion on the 14b, as the cage got damaged somewhat. May have been fine, but don't want to chance it. This will be here Thursday and I hope to get the axle back under the truck over the weekend if there are no more hiccups. Slow but steady. Been taking my time since we've been on lockdown.