Our 9" Ford NASCAR case (27.7 lbs) has a 3.062" bore with pump mounts and fluid ports, load bolt provision, 3/8"-16 threads for pinion support, lightened main caps. Internal lubrication pumps (p/n 57466) can pressure feed oil to areas that become starved from acceleration forces. The pump is internally mounted to the thirdmember case (special machining has already been done on our 57465 case). Circle track applications can also use the pump for flow to an oil cooler with the return flow providing cooling and lubrication.

  MW Pressure Lubrication Pump Service Bulletin
  MW Nodular 9" Ford Case Service Bulletin