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2003-2009 Toyota 4runner, Lexus GX470, FJ Cruiser & Hilux Vigo 4x4
Nitro Gear Package

Toyota Nitro Gear Package

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Price: $1,279.50


Gear Ratio*:

Optional Front Locker:

Optional Rear Locker:

Nitro Gear Oil:

Description Vehicle Applications Warranty Information

2003-2009 Toyota 4runner
Lexus GX470, FJ Cruiser & Hilux Vigo 4x4
without OEM E-Locker
Nitro Front & Rear Gear Package

2007-2009 Toyota FJ Cruiser without OEM rear E-locker
(All manual transmission models have OEM 3.90 ratio, see *Note)

2003-2009 Toyota 4Runner
(check OEM ratio*)

2003-2015 Toyota Hilux Vigo without OEM rear E-locker
(check OEM ratio*)

2003-2009 Lexus GX470

2003-2009 Toyota Prado 120 Series without OEM rear E-locker
(check OEM ratio*)

Front Differential: Toyota 8" Rev. IFS Clamshell
Rear Differential: Toyota 8"
Gear Ratio: 4.10
Manufacturer: Nitro Gear & Axle
Warranty: 2 Years

6 quarts of Nitro Synthetic Plus Gear Lube

Tech Note:
*4.30 & 5.29 Use Standard Thickness Front Gearset and are designed to fit the OEM 3.90+ Carrier, models equipped with 3.73 or down will require NC-T8S-4, ARB RD111 or Eaton EAT14211-1
*4.10, 4.56, 4.88 Use “Thick” Front Gearset and are designed to fit the OEM 3.73Carrier, models equipped with 3.91+ will require NC-T8S-3, ARB RD121 or Eaton EAT14221-1
Carriers sold separately.

Kit Contains:
Nitro front ring & pinion
Nitro front Master Install Kit
Nitro rear ring & pinion
Nitro rear Master Install Kit
front solid pre-load spacer
rear solid pre-load spacer

Suffering from poor performance and reduced fuel economy resulting from oversized tires?

A Nitro gear change will help get that performance and economy back!

If you've fitted larger tires to your vehicle then you are likely experiencing a loss in performance, fuel economy, and more constant transmission gear “hunting" - This is because the larger tires reduce your engine's RPMs below the optimal power band. Re-gearing the differentials in your vehicle is the only way to get your vehicle back into its optimal operating RPM range, thus improving performance and reducing strain on your vehicle's drivetrain. This is especially important for today's vehicles as they feature tall factory gearing and overdrive transmissions which are less tolerant to increase in tire size or the weight of added accessories.

It's a common misconception that gear changes are reserved only to hardcore off-roaders or trucks with huge tires. However, re-gearing is one of the single most beneficial modifications you can make to keep the performance, economy, and durability of your daily-driven 4x4. This is a mod for anyone with larger tires, increased weight, or for increased performance on stock vehicles for towing or increased acceleration.

Nitro Gear and Axle Premium Differential Ring and Pinion Gears, Axles and parts

We at Nitro Gear & Axle realize the difficulty for the average consumer or install shop to compile the list of parts and prices required when doing a gear change. To make it easier for everyone the experts at Nitro are introducing an industry first- “Gear Packages" for many popular 4x4 Fits. One part number. One price. One click away.

"Nitro Gear Install"


This product can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov

  • 2 Year warranty*
  • Nitro Rings & Pinions:

  • 8620 Steel Gear Forgings
    Precision Machining
    CNC Triple-lapping
    Heat Treatment
    Rockwell Hardness Tested
    • Nitro Master Install Kits:
    • Koyo or OEM Carrier Bearings
    • Koyo or OEM Pinion Bearings Pinion Nut if applicable
    • Pinion Seal Crush Sleeve or Preload Shims or Solid Spacer Carrier Shims if applicable
    • Gasket or Silicone Loctite
    • Gear-marking Compound and Applicator Brush

80W-140 Nitro Para-Synthetic Plus Gear Oil, GL5
Price: $258.00

80W-140 Nitro Para-Synthetic Plus Gear Oil
80W-140 Nitro Para-Synthetic Plus Gear Oil, GL5 (1 Quart)
Price: $22.50

80W-140 Nitro Para-Synthetic Plus Gear Oil

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