COPYRIGHT © 2021 JOHN'S INDUSTRIES INC.
100 AXLE DRIVE
CASPIAN, MI 49915
PHONE: 906-265-9999
TOLL FREE: 800-332-3450
FAX: 906-265-4632
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-polished
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