8" Toyota OEM E-Locker Nitro Front & Rear Gear Package Kit, Select Ratio
2005-2015 Toyota Tacoma with OEM rear E-locker (4cyl models have 4.10 see *note)
2007-2009 Toyota FJ Cruiser with OEM rear E-locker
(All manual transmission models have OEM 3.90 ratio, see *Note)
2003-2008 Lexus GX470 with OEM rear E-locker
2003-2008 Toyota Prado 120 Series with OEM rear E-locker
(check OEM ratio*)
2005-2015 Toyota Hilux with OEM rear E-locker
(check OEM ratio*)
Toyota 8" Rev. IFS Clamshell
4.10, 4.56 or 4.88
Nitro Gear & Axle
Recommended: 6 quarts of Nitro Synthetic Plus Gear Lube
*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
or NC-T8S-4 ARB RD111.
*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
or NC-T8S-3 ARB RD121
*Carriers sold separately.
Gear Package Kit Includes:
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 gears 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.
2 Year warranty*
Manufactured in South Korea
8620 Steel Gear Forgings
Rockwell Hardness Tested
Nitro Master Install Kits:
*All Nitro Gear & Axle brand products are warranted to be free of manufacturer defects for the specified period. Warranty requests must be made by the original purchaser and submitted by the dealer purchased from. Any parts sent for warranty consideration must be pre-approved and shipped prepaid freight to our facility with a copy of RGA for our inspection & determination. We will not pay for labor, shipping cost, loss of revenue or perishable goods, commercial losses, costs of telephone calls, shipping or general inconvenience. This is our only warranty expressed or implied. Unauthorized warranty returns may be refused. The warranty generally covers MFG defects in material or workmanship. Abuse, overloading, improper lubrication, misuse, commercial or competition use voids warranty. Normal characteristics are not warrantable, such as Gear whine. Minor cosmetic flaws, dings, burrs from shipping or manufacturing, are not considered a defect, it is installer responsibility to address these at time of install. The customer is responsible for shipping charges if the warranty is granted. Warranty is for the original purchaser/user, is not transferable. Warranty covers one replacement or credit solely at our discretion. Warranty determinations are at our sole discretion.
In addition to the above conditions, see special notes for these products:
Ring & Pinion – Warrantied against manufacturing defects. 2 years from the date of purchase. Must provide set-up specs.
Chromoly front Axles, Excalibur Joints, 30/30 Birfield kits - Warrantied against manufacturing defects for the life of the vehicle. These products are also covered for Breakage. The Shaft/joint must be BROKEN. Wear, twisting, bending are not warrantable. Damages caused by a failure of other parts are not warrantable, for example, broken U-joint (other than Nitro Excalibur) causing damage to Axle ears.
Rear Chromoly Axles - Warrantied against manufacturing defects for 5 years. These products are also covered for Breakage. The Shaft must be BROKEN. Worn, twisted, or bent axles are not warrantable.