Alex Lochner

my 1992 w250 cummins had old leaf springs that sagged Badly so I replaced them with skyjacker dc200 springs. When I put them on it ended up leveling the truck out and I put 35s on sixteens on and they are brand new hankook dynapros and the the the tires and wheels are balanced besides the springs and the tires everything In the front end is stock like drag link and tie rods etc. so when I drive 45-50 mph is starts to shake or vibrate like not wobble side to side more like bump up and down then but it's not there when I'm not in that mph range so I was wondering if any of you guys could help me out and gimme ideas what's wrong before I have to take it to a shop and pay big money. Thanks

Montana2x2

I'd rotate tire front to back and if it's the same then it's probably a front end problem. New tires and balance does not mean they are 100%. If rotating them changes the shaking I'd head back to the tire store for a rebalance. Bigger tires will be harder on you front end I'd check shocks, king pins, tie rod ends etc and make sure they are all good.

organicfarmer

Thats easy,...DODGE MAKES IT, CUMMINS SHAKES IT!

maybe368

Usually a shake like that at specific speeds is a wheel balance problem. If the wheels are well balanced, then I would suggest the problem is the king pins, see here:

https://www.dieseltruckresource.com/...g-pins-290373/ ...Mark

j_martin

https://www.dieseltruckresource.com/...wheels-248980/

Might be worth centering singles also. This applies to coined wheels, I believe.