Adding to the ID of a king pin .002

[winr1]

I have an early F100 straight axle with an .861 king pin bore, the later ones are .859 up to I believe 1979

The later king pins are .859/860 depending on who ya buy them from

That said, I have a tiny bit of wiggle with my later king pins

I cant use early king pins as they are too short

Can I build my king pins up by a bit with some process or just make new ones ??

My Brother by another Mother has a very nice machine shop and will make me whatever if need be



Ricky.

[BigBlueIron]

Rebush the axle and ream to size. Be alot easier than building up a kingpin.

[FERoadster]

Re: Adding to the ID of a king pin .002
« Reply #1 on: Today at 06:51:21 AM »
Quote
Rebush the axle and ream to size. Be alot easier than building up a kingpin.

Thats what I did to my 36 V60 tube axle bushed it to Econoline size and converted to Econoline spindles. But that was 1974.
Richard >>> FERoadster

[Lowrider]

Rebushing them was how we repaired them back in the day. I still have a "fishing tackle box" full of adjustable reamers I inherited from my old man. Almost kind of lost art for repair shops now. They all just send the spindles out to get it done.

[cleandan]

Just another chiming in to say keep the new king pin and ream the bushing hole to fit perfectly.
If you have an adjustable reamer that is the way to go.
If you don't you likely can contact some of us an maybe we will send you ours to use.
I have a couple that may work.

The adjustable reamers are relatively big lengthwise compared to fixed reamers though.

The best part about reaming the bushing to fit is you will get a perfect fit that will likely last for the next 30 years or more depending on the mileage the truck sees.

You can make kingpins to fit the available bushing but kingpins are much harder to make and properly heat treat than reaming an undersized bushing to the proper size.

[BattlestarGalactic]

The other options is find a bigger pin and locate a machine shop that could centerless grind the larger pin to the size you need.  All depends on what you have available in your area.

I rebushed the front axles of my old Cub Cadets by drilling the holes larger, installing bushings from Mc Master Carr, then reaming them to size.  It helps to work at a machine shop.

[winr1]

Thanks guys !!

Moog and others made a .010 over king pin set but have not had luck finding one as of yet

Did some more measuring, looks like a .010 over will be perfect

The king pin holes in the axle sometimes wear like a valve guide


Ricky.