Ford 9-Inch Third Member Assembly (31-Spline)
New, built-to-order Currie 9-inch nodular iron third member set up for 31-spline axles. Options include a choice of gear ratio and pinion yoke.
Features:
- Currie Sportsman Nodular Iron Case with 3.062 Bore
- Currie Nodular Iron Big Bearing (Daytona) Pinion Support
- 1350 Yoke Nodular Iron Yoke
- Choice of Gear Ratio
- Setup and Assembled by Skilled Professionals
A complete Currie 9-inch third member makes updating your street rod, muscle car, or truck easy with a new gear ratio or performance differential. All Currie built-to-order third members features a new gear case, bearings, seals, solid pinion spacer, and Daytona pinion support, with a choice of gear ratio, pinion yoke, and differential type. All Currie 9-inch third members are assembled by our in-house experts with decades of rearend setup and assembly experience so that you can trust the finished product.
Gear Case - New Currie Sportsman 9-inch nodular iron gear case with 3.062 bore carrier bearings for 31-spline axles
Spool – The spool is the most straightforward and robust option but lacks differential action, as the spool's solid center joins both axles. Spools are not recommended for the street, as they place high twisting loads on the axles, increase tire wear, and negatively impact handling. Spools are typically only used for drag racing applications where straight-line performance is the only concern.
Pinion Support - New nodular iron big bearing pinion support
Master Bearing kit - Includes Timken master bearing kit with seals and solid pinion spacer
Gear Ratios - Select from a wide range of ratios. Currie uses only the highest quality Motive Gear Performance® series (Orange box) ring and pinion sets
Labor - Fully assembled and set up in-house by skilled professionals
Optional Gear Oil / Install Kit - Oil service kit for Ford 9-inch rearends includes 3 quarts of Currie 85w-140 racing gear oil, third member gasket and 10 nyloc nuts and aluminum crush washers