3 jack stands and then flip the axle over. I put lug nuts on the studs and had the nuts sitting on the stands.
I used a "disposable" gun from Harbor Freight. Less than $10 when on sale. I did clean the gun a few times when I was going to spray again on the same day, but beyond that it's not worth the aggravation of it not working correctly.
I used Magnet Chassis Saver chassis paint in satin black. Only buy as much as you can use, it doesn't store well after opened. After use, clean the rim of the can real well or you won't get the lid off. I used less than a gallon for everything. Per the instructions, I didn’t prime. If you use this paint, order the S8 reducer at the same time. It is MEK and is outlawed in most states, you won't find it local, but you can get it online. I bought both paint and reducer on eBay, for around $100.
Wear a respirator, I didn't the first day and even though it was out doors, I still puked for 3 days.
Using the gun and spraying the paint was simple. This was my first time doing it and it was much easier than I thought it would be.
http://www.magnetpaints.com/underbody.asp
https://m.harborfreight.com/20-oz-8-...gun-67181.html