Ford 9 in. 31 Spline LSD TorqueWorm® Heavy-Duty Third Member Differential Center
|Part Type:||Third Member Complete Assembly|
|Product Line:||Standard-Nose Case|
|Case Style:||Ford 9"|
|Main Cap Material:||Aluminum|
|Main Cap Retention Style:||Bolt|
|Carrier Bearing Diameter (in):||3.250 in.|
|Pinion Support Bolt Quantity:||10|
|Standard Pinion Location:||Yes|
|Ring Gear Load Bolt:||No|
|Ring and Pinion Included:||Yes|
|Ring and Pinion Ratio:||All Ratios Available|
|Yoke Style:||1350 Series|
|Carrier Type:||Torque Worm LSD|
|Notes:||Please leave a note during checkout with desired gear ratio.|
|Calculator||Gear Ratio Calculator|
CASE: Our aluminium cases are made from A356-T6 aluminium, our bearing caps are one-piece billet, with a through bolt design and extra material is added to the bearing caps. These cases are offered in 3.250" bearing diameter to accommodate 28, 31 and 35-spline carriers and spools. These extras truly make this Aluminium case the ultimate Ford 9" case, rated to 850 horse power. All our aluminium third members come with 12 point through bolts and a billet pinion support, which gives us an advantage over our competition.
The TORQUE WORM is a torque biasing 6 pinion gear type Limited slip unit. This is a preloaded unit allowing for a faster Reacting unit. Unlike our competitors that only use 3 or 4 pinion gears. The use of 6 pinion gears means the stress on gears is spread over a grater surface area; reducing the load on all internal Components. The internal components are made from EN36 Material as used in racing. The outer cases made from 8620 Chrome-Nickel-Moly Steel and the case hardened for long life and improved strength.
The GEARSETS used are HI-PERFORMANCE 8620 Chrome-Nickel-Moly Steel. CNC machined from high quality forgings to our exacting specifications and then heat treated to obtain high impact and durability. Then lapped to allow for correct tooth contact and smoothness and for use in the performance market. The 8620 Gearset has proven itself in all forms of motorsport over the past 30 years.
3.00:1 · 3.25:1 · 3.50:1 · 3.70:1 · 3.89:1 · 4.11:1 · 4.30:1 · 4.56:1 · 4.88:1 · 5.14:1
YOKE: Speedmaster TDS Billet yokes are a long style unit fully CNC machined to our specifications.
ASSEMBLY: Assembly has been carried out by the Speedmaster™ TDS differential team. Quality is assured with 40 years experience in the Differential Industry and full involvement in all forms of motorsport from V8 SUPERCAR To Group 1 Drag Racing. Our Technicians are on hand to discuss your differential requirements, questions and upgrades.
NOTE: These 3rd members are to be used with a mineral based oil of a range of EP140 Extreme pressure at a minimum, NO 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 warranty.