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1990 F- 250 has bad shake!

Discussion in 'Ford Trucks' started by baddboygeorge, Oct 24, 2007.

  1. baddboygeorge

    baddboygeorge Senior Member
    Messages: 237

    It happens only every now an then an at slow speeds below 25mph but when the front end starts to shake look out its a night mare ! Whats the problem????
  2. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    Start by checking everything with it jacked up and on jack stands. Somethings have to be real loose, if not worn out, is near that point. That era front end, if it plows much, it will last about 30k between ball joint replacements. You get the slop in the joints, tie rods, pitman arm, bearings and spring bushings you can have a lot of movement. A bump will set it in motion. If you do the work yourself get the repair manual. The old ways of setting wheel bearing preload and replacing ball joints with newer trucks may not work. You might destroy / shorten the life of expensive parts if not done correctly. If you tear it down to do the front end parts, check your U -Joints in the axle. Most times they need replaced too.
  3. sefh

    sefh Senior Member
    Messages: 436

    Check ball joint and also check your tires for a bad spot on one of the front
  4. powerjoke

    powerjoke PlowSite.com Addict
    Messages: 1,341

    i agree with the other's (balljoint's) and your just now noticing it becase your steering dampner is getting a little week also,

    or you have extremely large tires and they are tow-in too much, either way a alignment shop needs to look at it
  5. Mudman78

    Mudman78 Senior Member
    from NJ
    Messages: 103

    It's commonly referred to as "death wobble". It can be caused by worn front end parts, but on your model, check the TTB arm mounting brackets under the front engine crossmember. They crack and/or the mounting bolts loosen up and egg out the holes.