Unfortunately due to several different issues on the Colorado, we don't offer an LED upgrade for it at this time.
Some year models don't have enough space in the headlight assembly to fit an aftermarket globe, but can be modified to fit using a die grinder to carve some of the plastic away - however, this is not suggested
Other year models can fit, but the reflector scatters light all over the place, the system requires additional wiring to bypass the Canbus system, and the dust caps won't fit back on - all of that, and the performance upgrade is negligible on that model due to poor reflector geometry.
However, for the Z71 Sports Cat, we do have a roof mounting bracket for a light bar. It won't replace your headlights, but it will make them obsolete!