Outboard Bearing Supports are very important on late model tranmission as the main shafts are much longer and when the power is applied the shafts want to tweek.Their are differant designs on OBS and one must be carefull when buying (examples) what size bearings are used in the system,where are the bearings placed,what holds the bearings in place,are the bearings secured with .095" snap rings,is there a steel carrier pressed into the bearing to load or is it a slip fit,is there a counterbore on the outboard plate for a steel carrier to lock the shafts in position,are there stands from the outboard plate to the engine/trans plate,Not Recomended as we want the 2 shafts to work independenley of the chassis.As you can see after reading this there is much to learn about belt drive systems.
Jim@Karata