This change transfers the front weight of the car from the top of the king pin to the bottom. The thrust bearing at the top of the king pin was replaced by a bronze thrust washer fitted between the axle beam eye and the king pin bottom bush. A service information sheet was issued to dealers/service departments to enable them to deal with complaints of wheel wobble from owners. These were discontinued in February 1938 by the factory due to complaints of wheel wobble.
The original king pins fitted to the VA (up to chassis VA1254) have a threaded section at the top that secured a thrust bearing.
Please read through all the procedure before undertaking the work. The king pins and bushes are Safety Critical Items on your car and their replacement should only be undertaken by a competent person. You are dealing with steering and brakes is it worth the risk? If you insist on doing them (I say them because as stated above you do both not one side) good luck they can be a job that goes smoothly or they can fight you every step of the way.These procedure notes have been have been written to assist VA owners in replacing their King Pins.
Replacing king pins how to#
I am tempted to say if you have never done them or have to ask how to do them it might be something to have more experienced person do. There is also possibility you might need new drag link or tie rod end depending on if cotter pin breaks and if you can drill/ punch it out. Some bushings are pre sized some are not and need sizing after they are driven into the spindle. Do you have a machine shop ready to size the bushings if needed. I have also had to cut/ or drill out the king pin lock bolts. Technically you should not heat the axle but if the pin is seized you do what is required. Rarely are two kingpin jobs the same.Some fall out,others have to be beaten out with heat.Remove your wheel,brakes,backing plates,tie rod,spyder.Remove tapered locking pin in axle eye,and top and bottom caps on spindle.Drive king pin out,hopefully comes out easy.Make sure your play was not in the axle itself,whole different job,then.In severe cases,have had to remove axle,and press pin out.Knock or cut old bushings out of spindle,carefully press in new ones.Keep an eye on how things come apart,not rocket science.Unless you have the right size reamer,you'll have to take your spindles to a truck front end shop to get your pins fitted.Put it all back together,the way it came apart.You will have to shim the new king pin bearing to get any play out.Shims should come in your kingpin kit.Once back together,grease well,spin both wheels and scribe center line on both tires.Have someone hold your tape measure,check front and back measurements.Toe in adjust tie rod to 1/8.Hope this helps,haven't done one for while,but that's how we did it in the old days,don't think much has changed,unless you have tapered king pins.Never fooled with them.ĭo you have torches? There has been times where the pin is seized and you will have to cut the thrust bearing to access pin to cut it so spindle can come off to allow better access to the seized pin.
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