Front end still shakes?

[Smokes]

Need any ideas on what i should check, I've changed tires/rims & it still shimmys around 55-60, I've taken care of the driveshaft & pinion angle, back tires were changed also, Car rides smoother but it still has this problem, At 40-45 its really smooth, I was told by an allignment guy that a bad allignment will not cause shakeing/shimmy, just drifting/pulling & bad tire wear (which i don't seem to have).

Could it be a bad ball joint, the front end seems tight.

 

[Doober]

I'd say check everything suspension related... ball joints won't be as easy to check because it'll have to be suspended in the air, and then you'll need a jack to take the weight off the ball joints.

 

[t01blaze]

Jack up each wheel, one at a time by the lower control arm, as close to the tire as you can get the jack and use a pry bar between the ground and tire to check for ball joint play. You only have to be a few inches off the ground.

 

[Smokes]

I'm hopeing its a bad BJ because i've done everything else, They seem to still be good but who knows, Now i did have to change out the upper control arms when i got the car, they put longer/larger upper arms to get lift when they were setting it up for hyd. i'm guessing, so i picked up a set off an S-10 as i was told they would work.

 

[LS6 Tommy]

The list of non stock stuff opens up a world of possibilities. The front end "expert" that told you the alignment settings won't cause a shake is a moron... Get everything to ground zero. Bad alignment, bad ball joints and/or center link/ tie rod wear can & will cause a shake or even make the front end violently uncontrollable at speed...

Tommy