Third Member Cases

John’s Industries introduces an original, custom 9” nodular case, designed for quick set-up and to meet today’s ever increasing horsepower. • Quality manufactured in Michigan from reinforced nodular iron. Customers will experience improved performance with this stronger, lighter weight differential that is reliable and built to last. • 100 percent new, customers realize the value they gain in reliability and performance. • Available for 28, 31, spline, 3.062 bore and 33 spline spool. • Available in open, Trac-Loc, Powertrax, Wavetrac, Truetrac and full light weight spool We do not ship to PO Boxes.

John’s Industries Nodular Iron Case N1905JICASE $400.00 John’s Industries introduces an original, custom 9” nodular case, designed for quick set-up and to meet today’s ever increasing horesepower. • Quality manufactured in Michigan from reinforced nodular iron. Customers will experience improved performance with this stronger, lighter weight differential that is reliable and built to last. • 100 percent new, customers realize the value they gain in reliability and performance. • Available for 28, 31, spline, 3.062 bore and 33 spline spool. • Available in open, Trac-Loc, Powertrax, Wavetrac, Truetrac and full light weight spool.

Bolt-through Aluminum Case 3250ALUCASE $557.00 Aluminum Cases are made of 206-T4 aluminum with 7075-T6 aluminum caps and billet steel adjusters. Features a super strong through-bolt design to give the case increased strength and decreased ring gear deflection common in most aluminum case designs. All bolt-through aluminum cases are drilled for the 3/8 stock pinion studs and 7/16 heavy-duty studs. Our aluminum cases are also designed to be used with either a standard pilot bearing with snap ring retention, or a heavy duty, wider pinion bearing utilizing button head bolts for retention is available. Bolt-through aluminum performance cases weigh only 16lbs, 15lbs lighter than our Nodular Iron Cases. All cases are CMM checked for machining accuracy, and are supplied with all Grade 8 hardware

Un-polished Aluminum Case N1901UCASE $413.00 Add $470 for Polishing Our top selling and most economical third member comes with: • High tensile aluminum alloy • Forged aluminum main caps • Solid adjuster nuts • For lightweight vehicles where weigh reduction is critical • Accepts OEM and aftermarket Ford 9" pinion supports • 3.062" bore size • 28 or 31 spline differentials • 28, 31, 33, 35, and 40 spline spools

Polished Aluminum Case N1904PCASE $883.00 Subtract $470 for Un-polishe​d Our top selling and most economical third member comes with: • High tensile aluminum alloy • Forged aluminum main caps • Solid adjuster nuts • For lightweight vehicles where weigh reduction is critical • Accepts OEM and aftermarket Ford 9" pinion supports • 3.062" bore size • 28 or 31 spline differentials • 28 ,31, 33, 35, and 40 spline spools

Nodular Iron Case N1901UCASE $395.00 Our top selling and most economical third member comes with: • Heavy Duty 9" nodular case • 8-10% stronger material than stock nodular iron • Additional mass in all critical areas • Chrome moly main caps • Solid adjuster nuts • Accepts OEM and aftermarket Ford 9" pinion supports • 3.250" bore size for applications listed below • 35 spline differentials • 35 and 40 spline spools

Third Member Cases

John’s Industries introduces an original, custom 9” nodular case, designed for quick set-up and to meet today’s ever increasing horsepower. • Quality manufactured in Michigan from reinforced nodular iron. Customers will experience improved performance with this stronger, lighter weight differential that is reliable and built to last. • 100 percent new, customers realize the value they gain in reliability and performance. • Available for 28, 31, spline, 3.062 bore and 33 spline spool. • Available in open, Trac-Loc, Powertrax, Wavetrac, Truetrac and full light weight spool We do not ship to PO Boxes.

John’s Industries Nodular Iron Case N1905JICASE   John’s Industries introduces an original, custom 9” nodular case, designed for quick set-up and to meet today’s ever increasing horesepower. • Quality manufactured in Michigan from reinforced nodular iron. Customers will experience improved performance with this stronger, lighter weight differential that is reliable and built to last. • 100 percent new, customers realize the value they gain in reliability and performance. • Available for 28, 31, spline, 3.062 bore and 33 spline spool. • Available in open, Trac-Loc, Powertrax, Wavetrac, Truetrac and full light weight spool.

Bolt-through Aluminum Case 3250ALUCASE   Aluminum Cases are made of 206-T4 aluminum with 7075-T6 aluminum caps and billet steel adjusters. Features a super strong through-bolt design to give the case increased strength and decreased ring gear deflection common in most aluminum case designs. All bolt-through aluminum cases are drilled for the 3/8 stock pinion studs and 7/16 heavy-duty studs. Our aluminum cases are also designed to be used with either a standard pilot bearing with snap ring retention, or a heavy duty, wider pinion bearing utilizing button head bolts for retention is available. Bolt-through aluminum performance cases weigh only 16lbs, 15lbs lighter than our Nodular Iron Cases. All cases are CMM checked for machining accuracy, and are supplied with all Grade 8 hardware

Un-polished Aluminum Case N1901UCASE     Our top selling and most economical third member comes with: • High tensile aluminum alloy • Forged aluminum main caps • Solid adjuster nuts • For lightweight vehicles where weigh reduction is critical • Accepts OEM and aftermarket Ford 9" pinion supports • 3.062" bore size • 28 or 31 spline differentials • 28, 31, 33, 35, and 40 spline spools

Polished Aluminum Case N1904PCASE     Our top selling and most economical third member comes with: • High tensile aluminum alloy • Forged aluminum main caps • Solid adjuster nuts • For lightweight vehicles where weigh reduction is critical • Accepts OEM and aftermarket Ford 9" pinion supports • 3.062" bore size • 28 or 31 spline differentials • 28 ,31, 33, 35, and 40 spline spools

Nodular Iron Case N1901UCASE   Our top selling and most economical third member comes with: • Heavy Duty 9" nodular case • 8-10% stronger material than stock nodular iron • Additional mass in all critical areas • Chrome moly main caps • Solid adjuster nuts • Accepts OEM and aftermarket Ford 9" pinion supports • 3.250" bore size for applications listed below • 35 spline differentials • 35 and 40 spline spools