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NITRO CHROMOLY Birfields & Axles - Now available for Toyota applications!

Toyota Trucks & Landcruisers are well known for their strength & reliability all over the world. Out of the box they feature some pretty great drivetrain, but they do have their limits. The factory axles are 30 spline at the diff, but neck down to 27 spline at the birfield creating a failure point. Additionally the factory Birfield joints are not built to withstand the added stress of larger tires and heavy off road use. Nitro Gear & Axle has addressed this by offering a range of Heavy Duty Chromoly Birfield Joints & Axle Shafts.


-NITRO 30/30 Kits feature axles that have 30 splines at both ends, eliminating the factory neck-down. Fully compatible with factory or aftermarket carriers, lockers, & hubs.


-High strength Chromoly Material featuring State of the art machining, heat-treating and polishing processes for uniformity and ultimate in strength.


-Wide application range suiting most Toyota pickups, 4runners & Land Cruisers

NITRO Axles Shafts, Bearings & Housings

Complete Chromoly 30/30 Birfield & Axle Kits (BOTH SIDES) Applications (All kits include inner axles that have 30 splines at both ends, birfield joints for both sides) FJ80 KIT IS 30/BIG24:

AX TBIRF-30-KIT 79-85 HILUX & 4RUNNER W/SOLID AXLE 30/30 SPLINE

AX TBIRF-FJ40KIT 76 & UP LANDCRUISER FJ40 & BJ70 30/30 SPLINE

AX TBIRF-LJ70KIT LANDCRUISER II, LJ70, RJ70, BUNDERA, 30/30 SPLINE

AX TBIRF-FJ60KIT 81-90 LANDCRUISER FJ60/62 30/30 SPLINE

AX TBIRF-FJ80KIT 91-97 LANDCRUISER FJ80, FZJ80 (USES 95+ DRIVE FLANGES)


Individual Birfield joints: (Featuring replacement spline configuration to fit stock joints/axles)

AX TBIRF PICKUP, 4RUNNER, LANDCRUISER FJ40/55/60/62, LJ70 27 SPL (STD JOINT)

AX TBIRF-4340 PICKUP, 4RUNNER, LANDCRUISER FJ40/55/60/62, LJ70 27 SPL (HD JOINT)

AX TBIRF-FJ80 91-97 LANDCRUISER FJ80, FZJ80 (REPLACEMENT JOINT)

AX TBIRF-FJ80HD 91-97 LANDCRUISER FJ80, FZJ80 (CHROMOLY/300M HD JOINT)

NITRO Axles Shafts, Bearings & Housings

Individual Axles, Rear Axles, Drive Flanges, Knuckle overhaul kits, wheel bearings and more are also available!

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We keep many different models of front and rear axle shafts along with spindles, bearings and flanges in stock! Check them all out on our website. If you can't find something you are looking for let us know.

Nitro Axle Shafts and Bearings

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Check out all our front and rear axles and accessories here.

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This 900 HP Dynomite Diesel Products pulling truck limped in with 3 broken axleshafts after a recent event.

Up front the broken OE 30 spline shafts were swapped for Nitro alloy 35 spline assemblies, An Auburn Gear, LLC Aftermarket Products Ected Max Elocker was installed in the Dana 60, new Nitro 5.13 gears and all that beef contained with Nitro Billet main caps.

In the rear Dana 70 out came the damaged OE 32 spline components and a custom machined Dana 80 37 spline Nitro Spool, Nitro ring and pinion and 37 spline Nitro Alloy axleshafts were installed along with another set of billet bearing caps to keep everything together.

Maximum durability combined with maximum traction this beast is ready to get back in competition! Check out all the NITRO Gear Chromoly Axles here. We have front and rear axles for many applications that include CTL (cut to length) shafts custom length applications.

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Our gears and axles are built to handle all types of abuse. Check out this 454ci powered Wrangler running Nitro equipped Dana 60s playing is some standing water:

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Check out our full compliment of axle shafts by vehicle manufacturer here. We stock a huge number of front and rear axle shafts for many different vehicles. If you have any questions, or can't find what you need, give us a call at 866 349 6801 or email us at info@justdifferentials.com!

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Got Axleshafts? Odds are we have what you need (or want) in stock. Here's a pic of just one of our axleshaft storage areas in the warehouse. Stock to high grade chromoly we have you covered. Give us a call at 866 349 6801 or email us at info@justdifferentials.com for a quote.

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We now have the full line of Nitro Chromoly Full Float Rear axle shafts back in stock for 40, 55, 60, 70, 80 Series Toyota Land Cruisers. Also Available in extra-long splined CTL (cut-to-length) versions for custom applications.

Give us a call at 866 349 6801 or email us at info@justdifferentials.com to get axles for your vehicle. We stock a huge number of axleshafts for many different front and rear axles. Check out everything here:

Axleshafts and Bearings at JustDifferentials.com

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Bumping this back up, Chromoly Axles are always in stock.

Give us a call at 866 349 6801 or email us at info@justdifferentials.com for a quote today!

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Loads of axles in stock now. Get 10% off your axle kit when you purchase a gear package for the entire month of November!

Order any Nitro Gear Package and receive 10% off on up to 2 lockers, LSD units, spools or chromoly axle kits, and more for your rig. Take advantage and save hundreds on gears, lockers, and axle upgrades now. This is not an online special so call 866 349 6801 and speak with one of our differential experts for an ideal combo for your rig!

Check out the packages available at the link and then call 866 349 6801 to order:

NITRO Gear Packages

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Time for a cost effective HD Birfield upgrade in your-

1969-1983 FJ40/FJ45
1968-1979 FJ55
1981-1987 HJ/FJ60
1988-1990 FJ62
BJ70
1979-1985 Toyota 4x4 Hilux Pickup
1984-1985 Toyota 4x4 4Runner/Toyota Surf
Toyota LJ70 RJ70 Land Cruiser II & Prado
SAS Conversions

Nitro 4340 Replacement Birfs in stock and ready to ship. Full upgrade axle kits available as well. Click HERE or call 866-349-6801. Shipping worldwide. Just $169.99 each.




You can check out all our axles HERE.

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No matter what you drive, or where you're going, we have the NITRO Gear and Axle parts to get you there! Check them all out at JustDifferentials.com or give us a call at 866 349 6801 and we can help you buy the best parts for your axles.

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Do your gears and axles have what it takes to get you where you want to go? Check out our website for chromoly axle shafts, U joints and birfields, complete axle upgrades and more. If you can't find what you need or if you have any questions give us a call at: 866 349 6801, or email us at: info@justdifferentials.com

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