You have a two piece rim. Take the air out of the tires,take top ring off ( tire bar or large pry bar) Turn over ( use some soap and water ) around tire bead. If you have tire hammer its quick if not break the bead all around rim ,tire should fall off rim at some point. Next step send out to be sand blaster-ed and powder coated any truck tire shop will do this for you(Tire truck Shop) and also will check your rims out in the processes .They will come back like new. Cost is about $100 to $150 per wheel ,Look around for best price ..
I've done hundreds of these rims over the years. Install is even easier, just make sure lock ring is in all the way. That ring will hurt you real bad if not seated. Also get remote filler so you are not next to the tire and rim.
Have fun, No a bad job Just Be Safe
Last edited by sack; 05/28/2018 10:27 PM. Reason: info