This kit is designed to work with a factory bolt in style housing end with bearing pressed on the axle. Call if you have questions. 
 
Kit is comes with internal parking brake mechanism. 
 
Rear Baer Brake Kit, 13" Drilled/Slotted/Zinc Coated Rotors, 4 Piston SS4+ Calipers are Powdercoated in red, black or silver. 4302501
 
| Why Purchase the SS4+?
2-piece rotor design with a 6061 T-6 billet aluminum hat bolted to the rotor friction ring with high grade NAS (Aircraft) hardware. Rotors comes pre-assembled
4-piston (S4) caliper that offers a piston area comparable to many 6-piston calipers
System includes Baer’s Verislide self-centering brackets that allow the caliper to float with the rotor/axle to prevent piston knock back
Fully machined billet backing plate that also holds the banksia park brake assembly
Standard colors are Red, Black or Silver (Custom colors and finishes also available)
| The S4 Caliper Features:
4-piston, 2-piece design with 4, 10mm cross bolts for maximum stiffness
Stainless steel abutments and noise suppression springs
Hard anodized aluminum pistons
Internal crossover design
Dual seals (dust/weather and pressure) 
Uses a common 4 piston pad for easy replacements
Red, Black or Silver Powder Coat Finish (custom colors available)
Machined logo that is hand painted
Uses banjo style fittings, Baer does not use any pipe thread
100% MADE IN USA with US sourced material