Bouncy rear end with ksports

[Akafreddydust]

i have a 93 s13 coupe on ksport coils and i have a couple different problems my cars shakes starting at 35 but i think i figured it out due to my tires separating it also is very bouncy in the rear and was curious if it would be because the coils are blown and would the bouncy ness affect my lsd working properly any help or ideas would be appreciated

[PapaSmurf2k3]

yeah vibration is typically due to rotating mass, like wheels/tires, driveshaft, etc.
Bounciness is typically not enough damper/blown dampers. Are the coilovers adjustable? Are the dust boots still in tact? Is any oil leaking out of them?