98- brakes to a 94

will the calipers and discs fit if i put the 98- backing plate. and what about the back? mine has drums in the back, would it be difficult to change them to discs?

You would need to change the proportioning valve to go from rear drums to discs. Besides that the disc brakes should just bolt right up.

the most efficient way to do the disk conversion on the back is to go get a rear axle assembly from a disk car. itll bolt right up and if you get one fully assembled all you have to do is hook up the lines. and i dont know if this makes a difference but the factory does not sell two different proportioning valves for drums and disks. i just assumed that cause i could never find one specifically for the disks or drums that the same was used for both, dont know exactly though...