I have Ground Control coil overs on Tockico struts. And the back right one sounds like it pops whenever it goes up a steep driveway. What do you think the problem could be any help is appreciated.

 

slip on type coilovers are notorious for that, when the strut goes to full droop, the spring dislodges from its pearch and makes a "popping noise" when reseating. you can fix this by making some sort of teather that attaches your top hat to the bottom spring pearch that doesnt allow the strut to droop past the springs length.or you can just live with it like most people do. hope this helps!

 

No spring isolators on the back? Install one on each spring is there isn't one.

And it still makes noise, then helper springs are probably the only other solution.