The new parts went together really tight. Instead of trying this I decided to go all out and replace the bushings with the solid bronze ones and replace the springs with the solid urethane.īefore this swap, my jeep steered really easy, drove straight, and had great return to center. I have not tried it.Īdding shims to the springs seemed to make a lot of sense. I've read a few threads about adding some shims (washers) to the king pin spring. I did add a PSC hydro assist cylinder since the video. This old video at the 1 minute mark is what I am talking about. My rig has always had a little shimmy and I'd like to get rid of it. As the truck entered the turn, the coupling gave way and the trailer detached from the cab.40" Nitto Trail Grapplers on 17" Hutchinson double bead locks, Not Balanced, Maybe 20 psi, and probably 150+ lbs eachĬrane king pin spring eliminator $52 shippedīasically everything in the front was new at 1 point and basically still is. A commercial driver from New York was driving a tractor-trailer carrying corrugated cardboard when the truck approached a gentle curve on the interstate. In January 2015, a runaway trailer accident on I-95 near Greenwich Connecticut nearly cost a mother her life. Drivers should always consult the manufacturer’s instructions to ensure that they are providing proper vehicle care.ĭefective or Worn-Out Trailer Kingpins Can Cause Severe Injuries or Death The above represents only the general guidelines a drive must follow to perform proper trailer maintenance. Then, prior to pulling away, the driver should release the suspension air to reduce the forces acting on the trailer. When the driver has aligned the cab properly and he or she is ready to drop the trailer, he or she should crank the landing gear so that it is close to the ground.
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