hey guys im new here and i need help on steps on doing a full body work on my truck, what brands and what size sand paper to start to finish ?

if needed to know i have a 2001 silverado z71 and the rear door has few dings and dents and the rest of the truck sanded down for primer so once all done i would like to spray the hole thing in primer

 

If its still not too late:

Go with 3M Wet/Dry sandpaper with the big sheets cut them in sections of 4 if your only using a block. Otherwise circular disc for DA.

Get grits from 36 60 80 for bondo shaping and smoothing/ 80 for clear coat only of going down to primer as it will warp if left on spots too long.

120-180 smoothing out fine bondo

320 -400 for prepping surface for primer- use block to get it smooth and flat as possible.

use graphite powder or if you want to, go with a dark or light primer to check imperfections depending on your primer choice.