The wheel bearings are sealed units and can not be packed.
I don't believe they are available separately. You will have to buy the hub assembly.
4 wheel ABS was an option in 2001.
Yes.
is the ecm on a dodge 2001, 2500 diesel hard to replace??
Yes.
A Dodge 2500 has 8 per wheel.
Yes.
The auto would bolt up, but not shift properly due to different internal sensors and controls.
149
8X6.5
Found out for myself that it's a Torx E-24.
Yes