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Strange S-Trac Differential Fits 9" Ford With 35 Spline Axles Requires Aftermarket 3.250" Bore Case

Part Number: N1980

Application – Ford 9″ with 35 spline axles


Aftermarket 3.250″ bore case
Axles with 30 degree pressure angle


Strange 35 Spline S-Trac
This helical gear differential offers smooth and progressive power transfer
Superior design and quality make it ideal for the most abusive Street/Track applications


Torque Biased, Mechanical & Clutchless
• Maximizes traction and acceleration
• Dependable and maintenance free
• Quiet operation


Forged Steel Case Halves:
• Heat treated
• Fully machined
• Provides a light, durable, and rigid unit


Internal Gear Pocket Geometry:
• Minimizes stress risers
• Increases service life


Dry Film Solid Lubricant Coating:
• Applied to thrust surfaces
• Minimizes component wear


9310 Steel Pinion Gears:
• Chrome moly material
• Provides the ultimate in torque carrying capacity


Aggressive Gear Helix Angle:
• Promotes superior torque bias
• Excels in situations of unequal traction


All Internal Gears Made from 9310 Steel:
• Vacuum heat treated for superior strength
• Additionally cold treated to optimize fatigue life and reduce wear


Proven Quality:
• Designed, machined, & assembled by Strange
• Materials made in the USA


Gear Lube:
Will adversely affect unit operation and void warranty

Use Only Petroleum Based 85W-140 Gear Oil


Strange Engineering, S-Trac Differential, 9" Ford, 35 Spline

SKU: N1980
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