spindle bushing question

[cederholm]

I've just installed some Speedway bushing (part of the Speedway kingpin kit) into some 37-48 spindles and the grease whole doesn't fully align. They leave a crescent opening a little over half of the full opening. Is this okay or should I drill them out fully before reaming?

Also, how tight should the kingpin fit in the axle ? Should it be "press in" tight or "tapped in with a deadblow hammer" tight? Trying to decide if it should be honed. The axle is a dropped model A.

Thanks,
Carl

[john in illinois]

...

[JSeery]

Originally Posted by cederholm

Also, how tight should the kingpin fit in the axle ? Should it be "press in" tight or "tapped in with a deadblow hammer" tight? Trying to decide if it should be honed. Thanks, Carl

It should be a snug slip fit. You should not have to drive the pins in with a deadblow.

Why is the grease hole not lining up, did the bushing get pressed in incorrectly?

[cederholm]

Snug fit as in pressed in by hand?


The grease holes are dead center in the bushings, the grease holes in the spindles are not.

Originally Posted by JSeery

It should be a snug slip fit. You should not have to drive the pins in with a deadblow.

Why is the grease hole not lining up, did the bushing get pressed in incorrectly?

[Seth Swoboda]

You should be able to push the king pins into the bushings by hand. The fit should be snug but able to turn. Have a shop hone the bushings to fit the king pins.

[cederholm]

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Perfect - thank you.

Originally Posted by Seth Swoboda

You should be able to push the king pins into the bushings by hand. The fit should be snug but able to turn. Have a shop hone the bushings to fit the king pins.

[rotorwrench]

I've seen some pretty crappy king pin kits on the market. Some have phosphor bronze thrust washers with steel shims instead of a ball bearing type thrust bearings. There should be not only a grease hole on the bushing but a grease groove should also be there in order to get the grease to flow over the whole of the bushing bore. I'm afraid that you get what you pay for now days. Cheap price equals junk parts. I haven't looked at the Speedway stuff but it could easily be in that category.

[cederholm]

They do have grease groves, and I hear you.

Originally Posted by rotorwrench

I've seen some pretty crappy king pin kits on the market. Some have phosphor bronze thrust washers with steel shims instead of a ball bearing type thrust bearings. There should be not only a grease hole on the bushing but a grease groove should also be there in order to get the grease to flow over the whole of the bushing bore. I'm afraid that you get what you pay for now days. Cheap price equals junk parts. I haven't looked at the Speedway stuff but it could easily be in that category.

[19Fordy]

I would drill out the grease holes. Then have them professionally reamed. Pins should just slip in with zero side play. The bushings will outlast you, so do it right the first time. Peace of mind is worth it. Remember to get some little red plastic caps for the grease fittings. I used longer grease fittings to clear the dropped steering arms.
https://www.ebay.com/itm/25-GREASE-Z...mPZ0ZVOekCkukQ

[cederholm]

Thanks all! Super helpful as always.

~ Carl