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Vehicle Info NeededSTRANGE ENGINEERINGPART NUMBER: 873-PJ9ST31S411
S-Series with 31-Spline Trac Lock 4.11 Ratio
$1,64577
Ships on 09/25/2026
Lowest Price GuaranteeS-Series with 31-Spline Trac Lock
S-Series with 31-Spline Trac Lock4.11 Ratio
The Strange S-Series is cast from premium nodular iron and manufactured by Strange Engineering in the USA. The S-case is machined to exact tolerances and has a radial rib design for superior rigidity, allowing for quiet street operation and longevity. Center sections are ready to install and ship with 2-piece transport case. These kits feature:
The Strange S-Series is cast from premium nodular iron and manufactured by Strange Engineering in the USA. The S-case is machined to exact tolerances and has a radial rib design for superior rigidity, allowing for quiet street operation and longevity. Center sections are ready to install and ship with 2-piece transport case. These kits feature:
- Strange Nodular Iron S-Series Case (made in USA)
- Innovative Radial Rib Design
- Premium Reinforced Nodular Iron Caps
- Iron Daytona Style Pinion Support (same support used by the majority of NASCAR teams)
- Large 1350 Series Pinion Yoke
- 31-Spline Trac Lock Differential
- Timken Bearings and National Seals
- Ideal for Street Applications
Part TypeThird Member Assembly
BrandSTRANGE ENGINEERING
Package Height14.0
Package Width15.25
Package Length18.0
Weight85.0 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberPJ9ST31S411
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
