If you mean the two "caliper mounting guide pin bolts" on the rear calipers (2 per rear caliper)...2001 manual says to tighten them to 33 N.m (24 ft. lbs.) torque.
If you have removed the front calipers from the steering knuckle, "Tighten the caliper to steering knuckle attaching bolts to a torque of 115 N.m(85 ft. lbs.).
If you have removed the rear caliper adapter:
"(1) Place the adapter over brake rotor and align adapter mounting holes to knuckle.
(2) Install adapter mounting bolts and tighten to 115 N.m (85 ft. lbs.) torque."
If you have removed the front calipers from the steering knuckle, "Tighten the caliper to steering knuckle attaching bolts to a torque of 115 N.m(85 ft. lbs.).
If you have removed the rear caliper adapter:
"(1) Place the adapter over brake rotor and align adapter mounting holes to knuckle.
(2) Install adapter mounting bolts and tighten to 115 N.m (85 ft. lbs.) torque."