Strange Billet Aluminum 9" Ford Center Section
HD 40 Spline Lightweight Steel Spool
10" Pro Gear & Female Coupler


Part Number: PRF420-10

Designed Specifically For Drag Racing
This Center Section & Gear Set May Not Fit Your Housing
Refer to the clearance diagrams shown on this page

Alcohol Funny Car
Top Dragster

• Professional assembly
• ARP ring gear bolts
• Shipped in protective container

Billet Ultra CaseN1912PM
• 3.812″ bore
• Machined from 7075-T73 aerospace aluminum
• Vibratory stress relieved
• Solution heat-treated
• .650″ thick mounting flange
• Raised cross rib design
• Wrap around design main caps
• AISI 8740 steel bullet end main studs
• Massive wall sections in tail bearing area

Tapered Bearing SupportN1950AE
• Billet 2024 T-6 aluminum
• Specific for 10″ gears
• Clear anodized for corrosion resistance

Sensor Bracket
• Billet aluminum
• One bracket is included
• Additional bracket available as an option

HD 40 Spline Lightweight SpoolD2002
• 2.250″ bearing journal for additional load capacity
• Lightened to eliminate unnecessary weight
• Forged steel

Choice of 10″ Pro Gear

Female CouplerU3629

Part Options
Pick-up Collar
1 magnet – U1614
2 magnet – U1614-2
4 magnet – U1614-4
8 magnet – U1614-8

Taper/ball pinion support – OPRF26
Additional sensor bracket – N1952T
Load bolt (Not for lightened gears) – N1910T
Gasket – H1111 / H1111S

Labor Options
Lighten ring gear – D3596
MicroBlue gear set – D3598G
MicroBlue gear set & bearings – OPRF42


Billet Center with HD 40 spline spool / 10″ Pro gear & female coupler

Parts List and Overview pdf

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