Mark Williams Nodular Steel Ford 9" Third Member. Mark Williams third members are cast and machined in the USA. These are an excellent high strength replacement for OEM cases. 

MW nodular iron case features a improved case design that provides necessary reinforcement in all critical areas, yet is comparable in weight to a stock unit while lighter than competitors. Each MW nodular iron case comes with billet steel caps with ARP studs and nuts. Billet steel adjusters with studs for the pinion assembly. 

Instructions: Click Here 

Details

• Carrier Bearing Bore Size: 3.250"
• Pinion: Standard
• Bearing Cap Material: Steel
• Case Material: Nodular Steel
  
• Pinion Support Hardware: 7/16 studs, washers, nuts included
• Weight 29lbs

Includes

• Nodular iron case
• Steel Main caps w/ hardware
  
• Bearing Adjusters w/ locks
• 7/16 Pinion support studs w/ washers and nuts