yes
yes a 15 inch wheel WILL FIT a 1998 dodge ram 1500
yes it will with low low profile tires
A 1999 Dodge Ram needs 16 inch or larger wheels.
Yes
yes
YES
Yes, it will fit.
They have the same bolt pattern and should fit just fine.
Yes, the transmission from a 1996 Dodge Ram 3.9L will fit into a 1997 Dodge Ram 3.9L. They will both have to be automatic, or manual shift, though.
No. The 1997 has drum brakes and the 2003 has disc brakes.
No, the Ram uses 5 bolt wheels.