justdifferentials

Nitro Street Billet 9" now available!

Machined in the USA from 6061T6 Billet aluminum with 7075 alloy bearing caps, featuring a load bolt for extreme resistance to deflection, high strength cap studs and designed to accept standard Nitro 9 inch ring and pinion sets and differentials. These will also accept a 10 inch pro-gear set using a different pinion support.

This third member sets the standard for strength, style and durability all while weighing in at 20-30% less than a comparable nodular iron case. It is pictured running a Nitro 3.70 gear set, Nitro torsen style limited slip differential and solid spacer with a forged 1350 yoke. This combo professionally assembled retails for about $2500.00 ready to ship. Other ratios and diffs available.


Call 866 349 6801 or email info@justdifferentials.com to request a quote on a combo that works for your ride!

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Thinking about building a 9 inch axle? Check out this highlighting the difference between aftermarket units such as the NITRO billet 9" and the stock housing.

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A pair of our USA made billet thirds headed out to the door for an Ultra4 build!

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The NITRO Billet 9" was on display at the PRI show this last weekend! These are Made in the USA, stronger, and lighter than a traditional 3rd member. If you know someone who is building a street rod or a truck with 9 inch axles, let them know about these!

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Have you seen the USA made Nitro 9 inch billet aluminum diff assemblies? We stock all the parts shown or can build a complete assembly to your specs quickly and professionally. Ideal for street or race cars with extreme strength and incredible looks. You can check them out online or call 866-349-6801 to speak with one of our diff experts.

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Going racing?

We stock the parts to build you the same Billet Nitro Pro rear 3rd member that turns the big tires on the . Call us today to get a quote for a diff for anything from full race to your weekend warrior/daily driver.

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Ever wondered what the difference is between a 9 inch gear and the Pro Series 10 inch gears? Check out this great article about the Pro 10" Ford.

WHAT’S THE DIFF? PRO 10″ FORD

Note the much smaller diameter pinion shaft on the OE style 9 inch gear and greatly reduced tooth size compared with the 10″ pro gear on the right.



You can find all the Pro Series gears we stock, HERE. If you have any questions you can email us at info@justdifferentials.com or call us at 866 349 6801.