Made in USA
S-Series with 31 Spline S-Series Spool 4.11 Ratio
InfoVehicle Info Needed
STRANGE ENGINEERINGPART NUMBER: 873-PRF135

S-Series with 31 Spline S-Series Spool 4.11 Ratio

$1,31899
ShippingShips on 09/10/2026
Lowest PriceLowest Price Guarantee

S-Series with 31 Spline S-Series Spool
S-Series with 31 Spline S-Series Spool
  • 4.11 Ratio

    S-Series with 31 Spline Spool

    The Strange S-Series is cast from premium nodular iron and manufactured by Strange Engineering in the USA. The S-case is machined to exacting tolerances and features a radial rib design for superior rigidity, allowing for quiet street operation and longevity. All of our center sections are ready to install and are shipped with a free transport case. These kits feature:

    • Strange Nodular Iron S-Series Case (made in USA)
    • Innovative Radial Rib Design
    • Premium Re-Enforced Nodular Iron Caps
    • Iron Daytona Style Pinion Support (same support used by the majority of NASCAR teams)
    • Large 1350 Series Pinion Yoke
    • 31-Spline S-Series Spool Differential
    • Timken Bearings and National Seals
    • Ideal for Street Applications
    • Free 2-Piece Transport Case
  • Part TypeThird Member Assembly
    BrandSTRANGE ENGINEERING
    Package Height7.3
    Package Width11.2
    Package Length16.5
    Weight73.25 PG
    Part CategoryPerformance Parts
    ToolTransmission Lookup
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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