Unsettled on Bumpy Roads

[Colin747]

A lot of the roads we have round here are very narrow and bumpy/undulating, to me the 350 starts to feel like it's getting unsettled when going over roads like at higher speeds. What would be the cause/solution of this? I'm thinking it could just be due to the age of the original suspension components (~102k miles) and that they could just do with a refresh or is it more down to the weight of the Z?

[Zeezeebaba]

The exact reason my 98k mile originals are being replaced with BC coilovers next Tuesday. Anti roll bar bushes too.

[Jez @ H-Dev]

Could be alignment - I found replacing the suspension bushes made a huge different to stability going over bumpy surfaces

[MDMetal]

Mines certainly improved since I swapped the rear ARB bushes, and replaced the banna arms. Got the shocks and coils to swap some point but it's certainly better! Both easy DIY jobs too!