Description
Longfield Toyota 8.4” Ring & Pinion Gears
Looking for a Ring & Pinion that you can rely on even on the most punishing trails? Trail-Gear is proud to offer Longfield Ring & Pinion Gears. These are the very same gears that have won multiple championships in professional desert racing & competitive rock crawling circuits and have proven themselves on some of the most grueling off-road courses in the world.
What makes Longfield Ring & Pinion Gears the best on the market?
Better Materials: We use heat-treated 8620 chromoly tool steel for strength and wear resistance.
Better Gear Teeth: We only use the 5-cut process on the ring gear teeth instead of the cheaper 2-cut process used by most other aftermarket vendors. The 5-cut process results in teeth with a tapered tooth profile. This increases contact area and spreads the contact load along a wider area, resulting in less stress on the ring gear teeth.
Better Machining: The gear teeth are cut using Gleason CNC hobbing machines & cutters. Gleason gear-cutting technology produces an unprecedented level of accuracy and surface finish, which allows the gears to transmit more torque and improve fuel efficiency. The higher accuracy and surface finish also produces a quieter-running gear set, which means they will work great on the daily driver too.
Better Finish: All Standard Finish ring gears are black phosphate coated for wear resistance & corrosion protection. The black phosphate coating provides a microporous layer on the surface to hold lubricants to minimize friction between gear teeth. This results in less wear during the initial break-in period and increases the overall life of the gears.
Better Value: We go directly to Tier 1 OEM manufacturers to have gears made to our exact specifications. By cutting out the middlemen, we can offer the highest quality gears at a competitive price.
On Toyota trucks we recommend 4.88’s for 33″ tires and 5.29 for 35″ and larger.
RING & PINION BREAK-IN PROCEDURE
All new 3rd members require a break-in period to prevent damage from overheating. Any overloading or overheating during these periods can cause the gear oil to break down resulting in ring & pinion failure.
- After installation drive lightly for 20-30 minutes and then allow the diff to cool for at least two hours.
- Avoid heavy throttle use during the first 500 miles.
- Do not tow a trailer during the first 500 miles.
- Change oil after 500 miles to remove any particles suspended in the oil.
This may seem unnecessary, but it is very easy to damage the differential by loading it before the gear set is completely run in. New ring & pinion gears create excess heat when they are new. This excess heat can damage the heat treatment of the gears.
AVAILABLE OPTIONS:
306429-1 – Longfield Toyota 8.4” Ring & Pinion Gears – 4.88
306430-1 – Longfield Toyota 8.4” Ring & Pinion Gears – 5.29
COMPATIBLE LOCKERS
| Part Number | Description | ARB | Eaton E-Locker | Detroit Locker | Spool |
| 306429-1 | Longfield 4.88 Toyota 8.4″ Ring & Pinion Gears | ARB-RD129 | EAT-14216-1 | EAT-187SL199A | YGA-32384 |
| 306430-1 | Longfield 5.29 Toyota 8.4″ Ring & Pinion Gears | ARB-RD129 | EAT-14216-1 | EAT-187SL199A | YGA-32384 |
WARNING – Cancer and Reproductive Harm – www.P65Warnings.ca.gov
Vehicle Fitment:
TOYOTA TACOMA – Non E-Locker Only
(1995-2015)
1995 Toyota Tacoma – Non E-Locker Only)
1996 Toyota Tacoma – Non E-Locker Only)
1997 Toyota Tacoma – Non E-Locker Only)
1998 Toyota Tacoma – Non E-Locker Only)
1999 Toyota Tacoma – Non E-Locker Only)
2000 Toyota Tacoma – Non E-Locker Only)
2001 Toyota Tacoma – Non E-Locker Only)
2002 Toyota Tacoma – Non E-Locker Only)
2003 Toyota Tacoma – Non E-Locker Only)
2004 Toyota Tacoma – Non E-Locker Only)
2005 Toyota Tacoma – Non E-Locker Only)
2006 Toyota Tacoma – Non E-Locker Only)
2007 Toyota Tacoma – Non E-Locker Only)
2008 Toyota Tacoma – Non E-Locker Only)
2009 Toyota Tacoma – Non E-Locker Only)
2010 Toyota Tacoma – Non E-Locker Only)
2011 Toyota Tacoma – Non E-Locker Only)
2012 Toyota Tacoma – Non E-Locker Only)
2013 Toyota Tacoma – Non E-Locker Only)
2014 Toyota Tacoma – Non E-Locker Only)
2015 Toyota Tacoma – Non E-Locker Only)
TOYOTA TUNDRA
(1999-2006)
1999 Toyota Tundra
2000 Toyota Tundra
2001 Toyota Tundra
2002 Toyota Tundra
2003 Toyota Tundra
2004 Toyota Tundra
2005 Toyota Tundra
2006 Toyota Tundra
TOYOTA T100
(1993-1998)
1993 Toyota T100
1994 Toyota T100
1995 Toyota T100
1996 Toyota T100
1997 Toyota T100
1998 Toyota T100
TOYOTA SEQUOIA
(2001-2007)
2001 Toyota Sequoia
2002 Toyota Sequoia
2003 Toyota Sequoia
2004 Toyota Sequoia
2005 Toyota Sequoia
2006 Toyota Sequoia
2007 Toyota Sequoia
