Ok TT experts im not sure what i have here look at them and help please.
they both are 20" wheels but notice the one has the 2 pcs. welded by the valve stem hole .it hits on the wheel.
The one with the sleeve at the stem hole is Firestone DT as used by Ford trucks on the rear and other makes of trucks.
The one with 2 plates is Firestone DTI. The 2 plates are riveted on. You could try drilling out the rivets, knock off the plates and see if the rim will fit your wheel and hopefully the lugs will seat properly.
Since it is the sleeve or the 2 plates that keep the rim from working around the wheel ( and tearing off the tube stem) you would have to make a sleeve and weld it to the rim if you want to continue to use the DTI modified rim.