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
 
Requirements:
Aftermarket 3.250″ bore case
Axles with 30 degree pressure angle
 
Description:
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
 
Features:
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:
DO NOT USE SYNTHETIC GEAR OIL
Will adversely affect unit operation and void warranty
Use Only Petroleum Based 85W-140 Gear Oil