DIY kingpin removal tool

[Lipp]

After much sweat and heartache removing upper kingpins, I finally whipped together this little tool, just a chinesium 7/8 hammer wrench off amazon with a bit of 7/8 hex stock welded in. Turned this headache into a comically easy job. I'm talking one guy, 4lb sledge, two kingpins, less than 20 seconds.

Enjoy

 

[PinionLabs]

If you don't plan on re-using the pins, just run a moderate weld bead across the face of them and they will spin right out with little effort.
I've also welded some scrap plate to them before, smack with a hammer and they spin right out. The heat does wonders.

 

[total newb]

I used to find scraps of hex bar and sell chunks to pbb members.


sold quite a few till someone mentioned running a cutoff wheel where the shoulder meets the knuckle.

 

[subybaja]

I used to find scraps of hex bar

That's an odd thing to stumble across.

 

[AlxJ64]

I used to find scraps of hex bar and sell chunks to pbb members.


sold quite a few till someone mentioned running a cutoff wheel where the shoulder meets the knuckle.

I've used this method. I've also center drilled a piece of 7/8" hex, dropped it into the stud, setup a flare nut style crows foot on a nice breaker bar and then used an air chisel to rattle the hell out of the hex stock and applied just the slightest force to the breaker bar and they spin right out. Mayhew makes a chisel adapter like this called the "Shake and Break" but you'd need an impact style hex socket to run it.

 

[AKnate]

What sort of kingpin is setup like that?

All the equipment and truck ones I've done don't have anything that unscrews other than a small keeper bolt. That's usually like a 3/8" bolt.

Often need to press the pin out, and sometimes 50+ tons of press, heat, and hopes.
Which makes the service book comical when it says to tap the pin out.
Yeah sure, maybe in 1985 when it rolled out of the factory.

 

[AlxJ64]

What sort of kingpin is setup like that?

All the equipment and truck ones I've done don't have anything that unscrews other than a small keeper bolt. That's usually like a 3/8" bolt.

Dana 60 King Pin studs are crown caps that thread into the top of the inner C. They are broached for a hex drive.

 

[Bebop]

 

[AKnate]

Dana 60 King Pin studs are crown caps that thread into the top of the inner C. They are broached for a hex drive.

Huh. I've only dealt with a couple light duty axles and they were all ball joint.

Picture makes it make sense. Interesting setup.