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Dana 60 king pin vs ball joint



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Old 04-23-2012, 09:46 PM   #1
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Dana 60 king pin vs ball joint

I'm no axle expert. Can someone explain the differences. As in pros and cons. I can tell them apart but that's about where it ends. Which is more desirable? Mainly referring to the older ford axles. I've got a hp44 now and looking to upgrade to a 60.
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Old 04-24-2012, 12:54 AM   #2
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I have no concrete evidence, but bj r weaker, oem speaking. I believe the bj inner c dont compare to kungpin strength. I believe the newer bj may have been an improvem to changent. Bj requires a special high$ tool to change, vs sockets and an allen wrench for kingpin servicing. I prefer kingpin 60s.
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Old 04-24-2012, 05:46 AM   #3
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From what I've seen the king pin is the axle everyone wants. It's stronger, the ball joints are a week spot.
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Old 04-24-2012, 09:56 AM   #4
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I see. Thatnks for the help. Prob going kingpin either way but wasn't sure why they were so desirable.
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Old 04-24-2012, 10:01 AM   #5
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How are the ball joints weak?

Unit bearing vs wheel bearings
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Old 04-24-2012, 12:10 PM   #6
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Balljoints weaker as they are a formed unit, and kingpin uses lower bearingnrace, and upper tapered stud and adjustible nylon race. Nylon race now has a impco brass race replacement, making it now alot stronger/tighter.
Some folks justprefer unit bearings as they tend to be cleaner, but I would rather have serviceability and longer wearing timkens.
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Old 04-24-2012, 12:24 PM   #7
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Balljoints weaker as they are a formed unit, and kingpin uses lower bearingnrace, and upper tapered stud and adjustible nylon race. Nylon race now has a impco brass race replacement, making it now alot stronger/tighter.
Some folks justprefer unit bearings as they tend to be cleaner, but I would rather have serviceability and longer wearing timkens.
You are right.

King pins take larger loads and can handle the side force a big tire puts on the. The also thread in and area really hard to get out. The bears also help with the loads and strength. The bad about Kind pins are the knuckle can crack and split where the kingpin threads in. I have seen that happen only once.

Ball joints are press fit and held in by a clip. Not a very strong application. The tend to come apart under a load and by the design it's a ball in a joint and that is weak.
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Old 04-24-2012, 01:50 PM   #8
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While I agree that the kingpin is pretty strong it's hard to deny that ford and dodge both went to a bj front on all the big trucks. Trucks that are bigger, heavier and have more power than the older trucks that used kingpins. I'm not an engineer so my opinion means nothing tho.
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Old 04-24-2012, 02:21 PM   #9
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ball joints are pretty cool. NOT having to remove 600 foot pound torqued kingpins is nice.
ive got 119k miles on my factory dodge joints, thats a pretty good service life for non greasables. both of them are a pain to change but a ball joint i think wins overall.
kingpins for servicability, all the way.

unit bearings irritate me, hate em.
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Old 04-24-2012, 02:24 PM   #10
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While I agree that the kingpin is pretty strong it's hard to deny that ford and dodge both went to a bj front on all the big trucks. Trucks that are bigger, heavier and have more power than the older trucks that used kingpins. I'm not an engineer so my opinion means nothing tho.
Good point, but they also did the CAD axles, so you never can tell why they do the things thry do nowadays. It may be totally about time/assembly savings.
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Old 04-24-2012, 02:40 PM   #11
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IMO, it depends on intended use - But, personally I prefer kingpins..when the springs begin to wear you can add fender washers to tighten them back up. Once a ball joint begins to wear all you can do is replace it. Also, I think kingpins are a $h!t ton easier to change than ball joints. Most of the time you don't have to remove the pin, but taking a cutoff wheel and relieving the 600lbs of pressure has been the easiest & quickest way I've found. Kingpins can be rebuilt with upgraded parts, ball joints can't..they are however strong the manufacturer says and even Moogs don't like the weight of my 2wd Cummins.

My Cummins just rolled over 135K, I changed the first set of ball joints at ~90k..on my third set now and need to change them out before the next trip. I keep putting it off because the lowers are a biittch, even with a ball joint press.





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