You can look on the rear axle carrier housing at the metal tag to know what type of rear end is in a 2004 Ram 1500, two-wheel drive.
If the 1999 is a four wheel drive, yes. If two wheel drive, no. The rims will not sit all the way on the hub.
The 2004 GMC Sierra-1500 has rear wheel drive.
The 2004 Chevrolet Silverado-1500 has rear wheel drive.
The 2004 Dodge Durango has rear wheel drive.
The 2004 Dodge Grand-Caravan has front wheel drive.
Yes.
YesYes
Yes
they are not adjustable they are sealed units
Dealer, salvage yard, Ebay.........
YES
Yes.