Ultra Case Center Section
HD 40 Spline Lightweight Steel Spool
10" Pro Gear & Female Coupler

This Center Section May Not Fit Your Housing
Please refer to diagrams below

Ultra Case – 3.812″ Bore
• 206-T4 heat treated aluminum
• Billet aluminum main caps
• Solid steel adjuster nuts

Choice of Pinion Support

Tapered Bearing Pinion Support For 10″ Gears – N1950AD *
• Billet aluminum
• Drilled & tapped for 5/16″ & 3/8″ pick-up sensors
• Eliminates need for pinion support spacer
• Enhances rigidity
• Clear anodized for corrosion resistance

* Will not work with 9″ or 9 1/2″ gear sets

Tapered Bearing Support For 9″ / 9 1/2″ Gears – N1950A
• Drilled & tapped for 5/16″ & 3/8″ pick-up sensors
• Clear anodized for corrosion resistance
• Pinion support spacer installed for use with 10″ gears – N1950HK
• Provides ability to use 9″ or 9 1/2″ gears without support change

Heavy Duty 40 Spline Lightweight Steel Spool – D2002
• Machined from forged steel
• Bearing journal increased to 2.250″
• Provides additional load capacity
• Broached 40 spline with 45° pressure angle

Choice of 10″ Pro Gear

Female Coupler – U3629
• Chrome moly

Professionally Assembled
• Timken® bearings & races
• Grade 8 ring gear bolts
• Shipped in protective container

Options
9″ Taper/ball bearing support with 10″ spacer – OPRF26
Lighten ring gear – D3596
Load bolt – N1910H
(Can’t be used with lightened gear)

Pick-up collar
1 magnet – U1614
2 magnet – U1614-2
4 magnet – U1614-4
8 magnet – U1614-8