Aluminum Ultra Case Assembly

3.250″ Ultra Case assembly / 35 spline spool / 28 spline Pro gear / female coupler

 
This Center Section May Not Fit Your Housing
Please refer to housing clearance diagram

Ultra Case – 3.250″ Bore
• 206-T4 heat treated aluminum
• Billet aluminum main caps
• Solid steel adjuster nuts

Tapered Bearing Pinion Support – N1950A
• Billet aluminum
• Drilled & tapped for computer pick-up sensors
• (2) 5/16″-24 and (2) 3/8″-24
• Clear anodized for corrosion resistance

35 Spline Steel Spool – D1555
• Forged chrome moly
• Lightened to reduce rotating weight
• Broached 35 spline with 30° pressure angle

Choice of 28 Spline Pro Gear

Female Coupler – U3627
• Chrome moly

Professionally Assembled
• Timken® bearings & races
• Grade 8 ring gear bolts

Options
35 spline Pro gear – OPRF05
40 spline steel spool – OPRF01
Taper/ball bearing support – OPRF26
Lighten ring gear – D3596
Load bolt – N1910H
(Can’t be used with lightened gear)

28 Spline Pick-up collar
1 magnet – U1613
2 magnet – U1613-2
4 magnet – U1613-4
8 magnet – U1613-8

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