B2600I 4WD & MPV 3.0L
WARNING: This page is about a different car, the 1991 Mazda Navajo. However, it is still accessible from the selected car via links, so may be relevant.
Loosen lock nut on band adjusting bolt. See Fig 1. Tighten bolt to 35-53 INCH lbs (4-6 N.m). Loosen band adjusting bolt 2 1/2 turns. Tighten lock nut to 23-31 ft. lbs. (31-42 N.m).