Isn’t there a thing people do using the weight of the truck to push the pins out? Like stick a bottle jack underneath or something?
I put a heavy duty jack stand under the axle, so I guess you could say that I am using the weight of the truck. The jack stand gives you a good base to allow for more force delivered by the invaluable BFH.
Heat is your friend on real stubborn ones. There is little to no grease where the kingpin meets the axle hole so rust can lock them up close to solid.
A propane or Mapps torch should be enough heat to cause some separation, allowing you to knock the kingpin through.
