Prime Design ErgoRack & AluRack - Mounting Module FBM Universal Pickup Cap 5Ft Channel Model FBM-1043Prime Design ErgoRack & AluRack Mounting Module FBM Universal Pickup Cap 5Ft Channel Model FBM 1043 The ErgoRack and AluRack Mounting Module series provides a robust and versatile foundation for securing professional ladder racks to a variety of commercial vehicle platforms. Engineered for maximum stability and structural integrity, these mounting modules allow for the seamless integration of Prime Design rack systems onto service bodies, pickup caps,