Best Heavy duty shocks

[3quartertime]

Looking for the best heavy duty shocks for a 71 K20 with no lift. The skyjackers from summit are a good price. I'm not looking or off-road shocks, I need them for the back of a work truck. I've been told that coil over shocks are rated higher.

I may put heavy duty bags on the rear to handle the wieght better in the future, but would like some good shocks till then.

Thanks!!!