These RTS rear housing ends are offered in popular styles which have been designed in CAD, ensuring proper fitment. They are machined from mild steel for ease of welding and then CNC-machined to achieve accurate dimensions.

Ford 9 inch Diff Housing Bearing End. OEM style accepts RTS-RW207CCRA  2.834" bearing and seal 

Note: 2.644" Register suits oem style tube, Will not fit into .3" competition style heavy wall axle tubes without machining