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9'' Ford Center Section
Speedmaster Ford 9-in. Complete Third Member Assemblies

Speedmaster Ford 9-in. Complete Third Member Assemblies

Ready-to-Install Third Member Assemblies

Speedmaster Ford 9-in. Complete Third Member Assemblies feature a Torque Worm 6-pinion limited-slip or full-spool differential in 28 and 31-spline axle shaft configurations. Third Member Assemblies are available in your choice of the most popular gear ratios and contain a new A356-T6 aluminum case that is assembled with all-new bearings, seals, heavy-duty ring and pinion, one-piece billet (through bolt) main caps,12-point bolts, u-joints/u-bolts, and precision-machined 1350 billet steel yoke. The 1350-series yoke is ideal for all forms of motorsports ranging from V8 SUPERCAR through Group 1 Drag Racing.

HD-style cases are rated at 850 HP but limited due to the size of the spline axle shaft.
Ultra HD-style cases are rated at 1200 HP but limited due to the size of the spline axle shaft.

LSD (Limited Slip Differential)
HD ( Heavy Duty)

Note: Each Third Member is to be used with a mineral-based oil of a range of EP140 Extreme pressure at a minimum. DO NOT USE split grades eg. 85/140 (these are not recommended). Failure to use the correct oil can result in gear damage, noise and may void your manufacturer's warranty.

Filter Results

AVAILABILITY

Ships Today (4)

free shipping

Free Shipping (157)

PART TYPE

Third Member Assembly (156)

Differential Bolt (1)

Differential Carrier Bearing Cap Bolt (1)

Ring and Pinion (1)

Stud (1)

PART TYPE

Differential Bolt (1)

Differential Carrier Bearing Cap Bolt (1)

Ring and Pinion (1)

Stud (1)

Third Member Assembly (156)

BRAND

Speedmaster (160)

BRAND

Speedmaster (160)

RATING

No Rating (160)

Ring and Pinion Ratio

3.70:1 (3)

3.89:1 (1)

Part Category

Performance Parts (160)

Part Fitment

Semi Universal (160)

Case Style

Ford 9 in. (4)

Bearings Included

Yes (3)

Pinion Support Bolt Quantity

10 (3)

Vendor Part Number

PCE208.1001 (1)

PCE439.1003 (1)

PCE445.1002 (1)

Yoke Included

Yes (3)

Yoke Style

1350 Series (3)

Case Material

Aluminum (3)

Ring Gear Load Bolt

No (2)

Standard Pinion Location

Yes (2)

Carrier Type

LSD - Limited Slip (2)

Main Cap Retention Style

Bolt (2)

PRICE

Less than $10 (1)

$20 TO $50 (1)

$50 TO $100 (1)

$1000 TO $1500 (67)

$1500 TO $2000 (77)

$2000 TO $5000 (13)

Items Per Page:

1 2 3 4 5

28-Spline Third Member Assemblies

Speedmaster 1-215-001-01 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.00:1

Speedmaster 1-215-001-01

Part Number: 746-1-215-001-01

Speedmaster 1-215-001-01

Speedmaster 1-215-001-01 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.00:1

$1,635.00

Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.

Speedmaster Ford 9-in. Complete Third Member Assemblies

Ready-to-Install Third Member Assemblies

28-Spline Third Member Assemblies

Speedmaster 1-215-001-01 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.00:1

Speedmaster 1-215-001-01 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.00:1

Speedmaster 1-215-001-02 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.25:1

Speedmaster 1-215-001-02 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.25:1

Speedmaster 1-215-001-03 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.50:1

Speedmaster 1-215-001-03 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.50:1

Speedmaster 1-215-001-04 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.70:1

Speedmaster 1-215-001-04 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.70:1

Speedmaster 1-215-001-05 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.89:1

Speedmaster 1-215-001-05 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 3.89:1

Speedmaster 1-215-001-06 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.11:1

Speedmaster 1-215-001-06 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.11:1

Speedmaster 1-215-001-07 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.30:1

Speedmaster 1-215-001-07 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.30:1

Speedmaster 1-215-001-08 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.56:1

Speedmaster 1-215-001-08 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.56:1

Speedmaster 1-215-001-09 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.88:1

Speedmaster 1-215-001-09 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 4.88:1

Speedmaster 1-215-001-10 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.14:1

Speedmaster 1-215-001-10 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.14:1

Speedmaster 1-215-001-11 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.43:1

Speedmaster 1-215-001-11 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.43:1

Speedmaster 1-215-001-12 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.67:1

Speedmaster 1-215-001-12 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.67:1

Speedmaster 1-215-001-13 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.83:1

Speedmaster 1-215-001-13 Ford 9 in. 28 Spline LSD TorqueWorm HD Case Third Member Assembly 5.83:1

Speedmaster 1-215-007-01 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.00:1

Speedmaster 1-215-007-01 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.00:1

Speedmaster 1-215-007-02 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.25:1

Speedmaster 1-215-007-02 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.25:1

Speedmaster 1-215-007-03 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.50:1

Speedmaster 1-215-007-03 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.50:1

Speedmaster 1-215-007-04 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.70:1

Speedmaster 1-215-007-04 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.70:1

Speedmaster 1-215-007-05 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.89:1

Speedmaster 1-215-007-05 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 3.89:1

Speedmaster 1-215-007-06 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.11:1

Speedmaster 1-215-007-06 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.11:1

Speedmaster 1-215-007-07 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.30:1

Speedmaster 1-215-007-07 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.30:1

Speedmaster 1-215-007-08 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.56:1

Speedmaster 1-215-007-08 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.56:1

Speedmaster 1-215-007-09 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.88:1

Speedmaster 1-215-007-09 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 4.88:1

Speedmaster 1-215-007-10 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.14:1

Speedmaster 1-215-007-10 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.14:1

Speedmaster 1-215-007-11 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.43:1

Speedmaster 1-215-007-11 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.43:1

Speedmaster 1-215-007-12 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.67:1

Speedmaster 1-215-007-12 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.67:1

Speedmaster 1-215-007-13 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.83:1

Speedmaster 1-215-007-13 Ford 9 in. 28 Spline Spool HD Case Third Member Assembly 5.83:1

Speedmaster PCE215.2100.01 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.00:1

Speedmaster PCE215.2100.01 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.00:1

Speedmaster PCE215.2100.02 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.25:1

Speedmaster PCE215.2100.02 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.25:1

Speedmaster PCE215.2100.03 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.50:1

Speedmaster PCE215.2100.03 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.50:1

Speedmaster PCE215.2100.04 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.70:1

Speedmaster PCE215.2100.04 Ford 9 in. 28 Spline LSD TorqueWorm Nodular Iron Third Member Assembly 3.70:1