Hoosier 31 Spline Posi Unit
A perfect replacement for worn-out OEM clutch differentials
Forged steel halves eliminate breakage common to cast units
Forged Steel Case Halves
• Heat treated
• Fully machined
• Provides a light, durable, and rigid unit
Intended as a Factory Replacement
For high output vehicles consider options below
Gear Lube
Use petroleum based 80W-90 or 85W-140 gear oil
Requires (1) 4 ounce bottle of limited-slip additive
Do Not Use Synthetic Gear Oil
Will adversely affect unit operation and void warranty
Related
Eaton Truetrac – N1979
Eaton Detroit Locker – N1971
S-Series case – N2205
Pro Iron case – N1905
HD Pro Alum case kit – P3200
