Left and Right

could also be tie-rod's.

 

Steering wheel shake at that speed range is always unbalanced/out of round steer tires. Unless the tires are brand new it is already too late for balancing. With the wheel shimmy you describe the tires will already be worn out of round. If you are lucky you just have a clump of mud stuck to the inside of one of the rims. If this shimmy has been going on for a while, you might have waited too long.

 

Check the front end. I'd suggest tie-rods as mentioned earlier. At speed when it goes from left to right, does it go away when curve left or right?

 

have your driveline checked (u joints,carrier bearing,rear end yokes)there you will find your issue.good luck.

 

Have that front end checked !!!!!

While it may be a tie rod, it could be a host of many things.

It's hard to "see" a worn pin.

By continuing to drive it, you risk cupping your tires. Inviting even faster wear.

 

At 50 mph? Yeah its your wheels. The fronts probably have self leveling compound. Problem with this stuff, if it sits at a dealer long enough it can get warm and drop to the wrong area. Take it too any tire shop. They will need to break the tire down. Ask if they can put the actual weights on it instead. Otherwise you can run fresh compound in it. Problem will resolve itself in 2 weeks of driving (maybe), but you will tear your rod ends out before then.

If it were rod ends you would notice it in your pretrip with excessive wheel play. Plus rod ends would do it at any speed. The fact it does it even in turns points to out of balanced wheels. Flat spots would show up at 35 mph. If it were a worn pin, the way to check it is to jack that wheel off the ground, try to push the top of the wheel in and pull it out. A bad steering pin would move at that time, again tho, pin would be at any speed though.

You might even ask the sales people if they would go good on a rebalance. Stuff like that doesnt cost them anything more than good PR.

 

My truck does the same and my rite steer tire is allready showing wear. In my case King pins are loose but I dont have the green to fix it soon.