Strange S-Trac Differential
Fits 9" Ford With 35 Spline Axles

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

Related Components
S-Series 3.250" bore case............. N2206
Pro Iron 3.250" bore case............. N1906
Pro HD Alum 3.250" case kit......... P3203

Side bearings, & races.................... D1590

Alloy axle package................... P3502 / P3504