Do NOT put a boot on the driveshaft.
Also, if you want a complete new driveshaft with the best joints, do not go to Napa or any other local autoparts store or the dealership. I will give you the name and number of a guy that builds custom driveshafts from hot rods, dragsters, rock crawlers, desert racers and everyday vehicles. Best on the market, strongest and one **** of a warranty.