Loose feeling front end and highway shake

[Alex Harrison]

I have a shake on my 07 EL that I can't get rid of... Starts around 65 and gets faster as I increase speed. It's almost scary how badly it sakes. I have replaced the entire front end (suspension, ball joints, upper control arms, tie rods, sway bar links, brakes are new (calipers and pads), body mounts are new, tires are almost new, They are goodyear Eagles. Also if I hit a bump at highways speeds, it feels like the entire front end is not tight to to the truck... it sends a chatter through the whole vehicle. Is it possible, that the new suspension I put on the front is defective? The shop who put the tires on has balanced them twice... They told me to go to a specialty shop, who had it for 2 days and couldn't figure out why it shakes either. I'm a total loss and it's driving me nuts. Transmission was rebuilt 15k miles ago ... Truck has 192,000 miles on it. I love it and drive it 30,000 miles a year and I have to figure this out soon or I'm gonna have to get a different vehicle.

 

[Motorcity muscle]

Do not see in your list the front struts, have they been replaced?

 

[Alex Harrison]

Chris Hodge, yeah, new struts about 8 months ago (struts/springs). Was thinking possibly wheel hubs, but I jacked up all 4 wheels today and by pulling/pushing at 12 and 6 o'clock as hard as I could, I couldn't get them to budge even a tiny bit.

It's possible that the right front strut/spring assembly I bought was no good. Seems that when I hit a bump with the left front wheel, it is fine but bounces much worse when I hit a bump on the right side. Also, if I go over a speed bump, the front bounces like crazy, but when the back wheels go over the same speed bump, they act like they should (i.e. it goes up and comes down smooth with no drama or bouncing).