Front end bouncing, I think it's the shocks

could be from worn tie rod ends, suspension ball joints , worn suspension rubbers and failing shock absorbers
take it to an accredited suspension service center for a complete check including the rear end as the front floating sensation could be from a problem rear end suspension set up and shock absorbers
I am well aware that every tire shop says rotate tires but in reality you just move a problem tire from one corner to the other, fail to see a wear problem develop in the tires ( indicates alignment or tire case problem) and costs 4 tires at a time instead of 2 which is not really economical as well
consider this front drive cars wear out front tires at the rate of 3 to rear tires 1 and I think you get the picture (rear drive cars rear tires 2 to front 1) or if there is a case problem with a tire it is lost in the rotation process and becomes dangerous on the road

warped rotors replace and then fix shocks since its what caused it in the first place also check ball joints and tie rod ends. see a typical vehicle use 70 % front brake and 30 % rear brake and when the shocks are bad a vehicle will use 80 to 90 % front brake which will cause the rotors to heat up over 400 degrees and then rapidly cooling causing them warp

Have you cked the bushing lower and upper

I have an '86 Runner myself, most likely the cause will be blown shocks. I would also check the wheel bearing play and the ball-joints at the top and bottom of the steering knuckles. The broken C.V. boots don't usually cause a tire type bounce, more of a consistent vibration that varies at different speeds. And the shocks are pretty the only real DIY item on that list, everything else should be done by someone with experience, preferably Toyota experience.


I hope this info helps!
~subyguru~

It has regular shocks on the front.

This is usually either wheel balance if you just feel the vibration in the steering wheel, or shock absorbers are worn if you can actually feel the front of the vehicle bouncing.

I had the same problem with my 98 Dodge and It turned out to be a faulty Steering shock dampner on the front end? Check your front end for any loose tie-rod ends, Track bar, Ball joints Ect. Also check and see if there is a shock absorber installed on your front end? If not you can get one for it at any parts stores but Moog makes a good solid after market kit that you can get at any NAPA Auto parts. Good luck.

check your rear wheel tire pressures. low pressure will give you that sensation. also check your rear tire(s) condition, worn tires can cause that sensation. if tire pressure and condition check ok, then consider rear suspension wear as the problem. check the rear shocks, perform a bounce test-if the rear of the truck rebounds more than twice, it is a sign your shocks are worn. look underneath the truck inspect for broken leaf springs.

The alinement is out. Check balljoint's and track-rod end's.Check these part's replace faulty part's and get it alined after.Cheer's

warped rotors