HELP!!! my lincoln is acting up!! once i hit 60miles the right tire keept shaking or bouncing...not sure, i changed the pitman arm idler arm and the ball joints in the front of the car...by the way the lincoln dosen't have original lincoln tires..low profile...now when i hit 70 and take my foot of the peddle, when its slowing down it starts the bouncing or vibrating. what can it be???

tires need to be same size i was having the same problem few days ago i install a spare tire it was smaller and my navigator shakes some times then later i put a same size like the rest of the tires and no more shake again tires need to be same size i was having the same problem few days ago i install a spare tire it was smaller and my navigator shakes some times then later i put a same size like the rest of the tires and no more shake again

i known your post was long time ago but maybe help more people today , mi ingles es malo espero que se pueda entender i known your post was long time ago but maybe help more people today , mi ingles es malo espero que se pueda entender