You will need to use the following rotors with this caliper bracket set. These all are an 11 3/4″ diameter rotor that is 1 1/4″ thick, vented and use bearing sets: SET 11 (Timken) or A18 (National) inner bearings and SET 16 (Timken) or A16 (National) outer bearings, same as the Dakota from 1987-1996.
Bolt patterns are as follows:
D100 Raybestos # is a 5 on 4.5″ Bolt Circle 11.75″ Rotor *REQUIRES MACHINE WORK*
D150 Raybestos # 7009R is a 5 on 5.5″ Bolt Circle 11.75″ Rotor
D250 (3300# axle) Raybestos # 7040R is an 8 on 6.5″ Bolt Circle 12.81″ Rotor
PLEASE check clearance between the lower control arm and the rotor. In some cases with dropped spindles and lowered springs or airbags, the lower arm can contact the back of the rotor. If you have this situation, you can trim the flange off the lower control arm to provide more clearance so there is no contact.
GM Calipers to use:
Raybestos # RC4214 LEFT
Raybestos # RC4213 RIGHT
(If using the D100 rotor, the inner bearing boss needs to be machined to 63mm and the seal boss also machined to accept the Dakota/D150 seal. We are trying to get a conversion bearing available for future usage. )