Strange 9 AXLE 31 SPLINE S/S PAIR MEASURE SPECS IN CATALOG STRANGE - P3104 (STP3104)

STP3104 - STRANGE 9 AXLE 31 SPLINE S/S

Axles, Bearings, Studs & Retainer Plates (Pair)

Part Number: STP3104

Strange Alloy Axles are designed to meet the demanding bending loads of street use. Manufactured from premium alloy steel forgings, each alloy axle is induction hardened to its optimal hardness with Strange designed tooling. Alloy axle splines are hobbed to the proper involute spline before heat treatment. The axles are made with a large 1.563" diameter axle bearing area and the shoulder accepts a radius ring that minimizes stress concentrations. A billet aluminum brake register is provided to properly locate the center of your disc or drum brake system. Alloy axles are offered in 28, 30, 31, 33 and 35 spline applications. Shafts up to 31 spline are ideal for street applications with the use of posi-units, Detroit Lockers, and helical gear differentials. It is always recommended to use the largest shaft as possible. If you own a 9” rear end and are considering purchasing a differential for a OEM case, then you should always upgrade from 28 to 31 spline components. The axles are identical in price and often the differentials are similar in cost. Although our 28 spline Alloy axle is stronger than OEM 28 spline, 31 spline axles are 38% stronger. We strongly recommend an upgrade to 31 spline axles for street applications. Strange Alloy 33 and 35-spline axles are able to withstand even higher torque and bending loads. 35-spline alloy axles are ideal for street and strip applications and may be used with Detroit Lockers, helical gear differentials and spools. Spools are for Drag Racing only and should never be used on the street.
Part Number: STP3104
Alloy axle packages are optimized for street & track use.
See our Hy-Tuf axles for maximum torsional strength for all out Drag Racing.
Alloy Applications With Spline & Spool Available

Chevy 8.2 10 bolt, 33 * Spline
Chevy 8.5 10 bolt, 28 / 30 / 33 * Spline
Chevy 12 bolt car, 30 / 33 * / 35 ** Spline
Dana 60, 35 ** Spline
Ford 8.8, 31 / 33 * / 35 ** Spline
Ford 9", 28 / 31 / 35 ** Spline
Mopar 8 3/4, 30 / 35 ** Spline
57-64 Olds/Pontiac, 35 ** Spline
* 33 spline Alloy packages… See P3304
** 35 spline Alloy packages… See P3504
Notes For This Axle Package
All Chevy & Ford 8.8 require replacement 3.150" housing ends.
Packages with C-clip Eliminator kit for OEM housing ends are shown below.
This Axle Package Includes:
Alloy Axles – A3100
Forged from modified 1550 premium steel
Majority of machining performed before heat treat to provide consistent hardness
Induction hardened to Rc 58-62 to increase torsional strength while remaining ductile
Finish machined after heat treat to ensure accuracy
Choice of 28 up to 31 spline
Lengths up to 34 1/2"
Choice of bolt circle
Forged in the USA
Designed and machined by Strange Engineering
Choice of Axle Bearings Maybe Limited To Housing End Type
Timken Tapered Unit Bearings – A1013
Designed for use with 3.150" housing end
Best for side loading and high mileage
Includes outer seals and locking collars
Note - May require new retainer plates if originally use a ball style bearing
Sealed Ball Bearings – A1021 / A1023 * / A1022 * / A1022OB *
Low friction bearing
Life reduced during prolonged use
O.D. grooved for o-ring to eliminate inner axle seal
Includes o-rings and locking collars
* These bearings include retainer plates
Retainer Plates – A1016 / A1018 / A1114 / H1147B
For A1013 or A1021 bearings
New plates ensure proper axle retention
Choice of Press-in or Screw-in Wheel Studs
Pres s-in 7/16"-20 or 1/2"-20 OEM style facto