Nitro Ring & Pinion 8" 4.88 Ratio Reverse

Nitro Gear and Axle
Part Number
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Toyota 8" Reverse, High Pinion 4.88 Nitro Ring & Pinion

Tech Note

2002 & older models require YOKTOYFITKIT-29.

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: 13 lb

Box Dimensions: 1 x 1 x 1 in


Differential: Toyota 8" Reverse

Gear Ratio: 4.88

Tooth Count: 39/8

Pinion Splines: 29

Ring Gear Bolts: 10 (not included)

Manufacturer: Nitro Gear & Axle

Warranty: 2 Years


Front Diff

1984-1985 Toyota 4Runner with High Pinion Conversion

1986-1995 Toyota 4Runner w/ Solid axle & High Pinion Conversion

1985-1995 Land Cruiser II, Bundera LJ/RJ/KZJ 70/71/73/74/78

1985-1995 Land Cruiser II Prado LJ78

1991-1998 Land Cruiser 70 Series HZJ/FZJ/FJ/HDJ/PZJ 70/71/72/73/74/75/76/77 Series, SWB, MWB, Troopie, UTE

1999 & Newer Land Cruiser 70 Series HZJ/FZJ/HDJ/PZJ/VDJ/GRJ 70/71/73/74/76/79/79, SWB, MWB, Troopie, UTE

1990-1997 Toyota Land Cruiser HDJ80, HDJ81, HZJ80, FZJ80, FJ80

1998-2007 Toyota Land Cruiser 100 Series UZJ100, FZJ100, HDJ100

1998-2007 Toyota Land Cruiser HZJ105, FZJ105


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ManufacturerNitro Gear and Axle
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