8 3/4 rear disc swap - ford ranger/explorer

I used a 1998 Jeep Cherokee. Only one hole needs to be drilled
Can I hear more about this please and thank you!
I'm on rock auto looking at grand cherokee rear calipers...and i'm missing how the 5 bolt pattern on the 8 3/4 axle flange is going to mate to the 2 bolt caliper bracket....or did you make a mounting bracket?