Rear coilover kits and tire size limitations?

[siggyfreud]

Hey all,

I'm about to get some custom forgeline wheels for my truck. Right now I'm on coil suspension, at about the ride height I intend to keep (previous owner). That said, I'd like to shift over to coilovers. When looking at various kits, it appears all except for RideTechs have the coilovers on the outside of the frame rails.

Should I be concerned about tire width interfering with them? My assumption is yes, since currently I have wider tubs, and the amount of space I have is only limited by the frame. I intend to run a 315 tire on an 11 or 12" wheel, but not sure if I need to worry about whether that leaves room for an outboard coilover, or if I'm limiting myself to a ridetech supet in the future.

This is on a 72 c10. Anyone run into this dilemma?

Thanks!