Not sure where to post, so I'll try here. The last few months my jk seems to have the roughest ride. Sometimes when accelerating It bounces up and down ever so slightly, Feels like it limps at very slow speeds and I feel slight vibrations at higher speeds. Running cooper ATPs, no they aren't the smoothest riding tires but I don't think they would cause that. I have had my tires balanced and checked so many times, had the jk realigned but still no change in ride. Someone please help.

 

No lift, wheel spacers, 275/70/18 coopers, close to 84,000 miles

 

What's your tire pressure? That's the easiest place to start.

 

I can't say the exact pressure currently but discount "recommended" I keep them aired at their specs. Over inflated tires can cause all that?

 

Do a chalk test and adjust your pressure accordingly.

 

They sure can... My Rubi was pretty flighty (all over the road) so I dropped my PSI to 28 on all 4 tires -- no more flighty.

I usually run my 35s at 24/25. But, each tire is different. As stated above, put a line of chalk across the tires and adjust from there. Your goal is more tire to the road...