HD Pro Aluminum Center Section
HD 40 Spl Spool, 28 Spline Pro Gear & Chrome Moly Yoke


Part Number: PRF192

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

Using 9 1/2″ Gear Set
Check gear diagram if considering that option

HD Pro Case
• 3.812″ bore – For 2.250″ bearing journal spool
• Manufactured from 206-T4 heat treated aluminum
• 12% higher yield and 32% higher tensile strength compared to 356-T6
• Large oil channel provides optimal lubrication to pinion bearings
• Heavily reinforced tail bearing area
• Chrome moly studs encapsulated by billet aluminum main caps
• Solid adjuster nuts
• Accepts over-sized tail bearing for heavy loads and high RPM
• Fits 9″ & 9 1/2″ gear sets

• Forged aluminum tapered bearing pinion support
• Pinion seal retaining plate and snap ring
• Races installed
• Support bolts, washers, and O-ring

Heavy Duty 40 Spline Lightweight Steel SpoolD2002
• Bearing journal increased to 2.250″ for additional load capacity

Pro Gear With 28 Spline Pinion
4.86-6.50 ratio

Chrome Moly Yoke & U-BoltsU1603 / U1610
Designed for 1350 series U-joint

• Professionally Assembled
• Timken® Bearings & Races
• Grade 8 Ring Gear Bolts
• Ships in protective shipping container & HD cardboard box

9″ Pro gear with 35 spline pinion – OPRF05
3.40-4.86 ratio

9 1/2″ Pro gear with 35 spline pinion – OPRF52
3.25-5.14 ratio

40 spline aluminum spool – OPRF29

1350 billet chrome moly yoke – OPRF08
1480 billet chrome moly yoke – OPRF20
HD yoke cap kit – OPRF37

Taper/ball pinion support – OPRF03
Lighten ring gear – D3596
Load bolt – N1910H
(Load bolt 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

Sensor bracket – N2300S

  • Total


Strange HD Pro Aluminum Third Member With Spool

40 Spline Lightweight Spool 28 Spline Pro Gear & Chrome Moly Yoke

The Strange HD Pro Ford 9 inch Aluminum Third Member With Spool is designed for Drag Race applications and for the most abusive Hi-Performance street/strip applications. As with all Strange aluminum cases, it is crafted from 206-T4 heat treated aluminum. This premium aluminum has a 12% higher yield strength and a 32% higher tensile strength compared to commonly used 356-T6 aluminum.

The billet aluminum pinion support has a unique oil channel that is machined 360º into the support to maximize oil flow to the pinion bearings as well as a large slot in the front to further boost oil circulation. The support is in contact with the bore of the case in two locations as opposed to one as found in normal cases. This additional contact area holds the pinion shaft much more securely resulting in better bearing and gear life. The tail bearing is oversized to handle more load and greater RPM than a stock tail bearing. Billet aluminum main caps encapsulate chrome-moly studs, provide the utmost support for the carrier bearings and significantly reduce ring gear deflection.

Strange Pro HD case / D2002 spool / 28 spline pro gear / yoke

Guidelines and Torque spec

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Return Codes to use: