Nitro Ring & Pinion 8 IFS Clamshell 4.56 Ratio Reverse Thick for Lexus & Toyota 2002-2022

Nitro Gear and Axle
Part Number
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Toyota 8" Reverse Clamshell IFS 4.56 Nitro Thick Ring & Pinion

Tech Note

Thick ring & pinion fits 3.73 & Down carrier: ARB 121 or NC-T8S-3.

Nitro gears are manufactured from 8620 steel gear forgings in the same manufacturing facilities as GM, Dodge, Ford & Toyota. They are precision machined using computer controlled processes, heat treated, CNC triple-lapped and Rockwell tested for hardness. These extra steps ensure excellent fitment, ideal contact pattern and smooth, quiet operation.


Box Weight: 15 lb

Box Dimensions: 1 x 1 x 1 in


Differential: Toyota 8" Reverse, Clamshell IFS

Gear Ratio: 4.56 Thick (Fits 3.73 & Down Case)

Tooth Count: 41/9

Pinion Splines: 29

Ring Gear Bolts: 10 (not included)

Manufacturer: Nitro Gear & Axle

Warranty: 2 Years


2003 & Newer Toyota 4Runner

2002-2008 Toyota Land Cruiser Prado 120

2009 & Newer Toyota Landcruiser Prado 150

2005 & Newer Toyota Tacoma

2007-2014 Toyota FJ Cruiser


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ManufacturerNitro Gear and Axle
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