The caliper brackets in that kit most likely won't work on pickup spindles as the bolt hole spacing for the (I'd have to look under my truck) bottom backing plate bolts are different than on car spindles.
The rest of the kit would work though and a guy might be able to drill new bottom holes if there is enough material there.
If you look at this kit from the same seller that is minus the rotors and calipers it shows bearing spacers that are needed to make the Rotors fit the spindles.
Still the caliper brackets are the rub and would have to be modified or replaced with ones that fit the pickup spindles. That wouldn't be all that hard to do but would take a bit of fabricating and welding.