Description
Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears
Looking for a Toyota Ring & Pinion that is even stronger than our
Longfield Ring & Pinion gears but with ZERO break-in? We are proud to introduce Longfield Super Finish 29-Spline Ring & Pinion gears. The 29-spline section on the pinion shaft is 7% bigger in diameter than the standard 27-spline pinion shaft, resulting in fewer broken pinion shafts. 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: Our Super Finish gears allow you to skip the break-in period and get on the trail now! The aerospace-grade REM® Isotropic Super Finishing (ISF ®) process removes the microscopic peaks in the material and creates a surface on the ring and pinion gears with a roughness of less than 10 µin average surface roughness. This means that there is less friction between the gears, reducing wear by 95% and allowing the gears and bearings to run cooler and last longer.
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.
AVAILABLE OPTIONS:
304521-1 – Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears – 4cyl | 4.88
304522-1 – Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears – 4cyl | 5.29
304519-1 – Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears – V6 | 4.88
304520-1 – Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears – V6 | 5.29
304523-1 – Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears – High Pinion | 4.88
304524-1 – Longfield Super Finish 29-Spline Toyota 8” Ring & Pinion Gears – High Pinion | 5.29
COMPATIBLE LOCKERS
| Part Number | Description | ARB | Detroit | TrueTrac | Grizzly | Zip | Spool |
| 304521-1 | Longfield Super Finish 29-Spline Toyota 4-Cyl 8” Ring & Pinion Gears – 4.88 | ARB-RD132 | EAT-70752 | EAT-TT70P52889 | YGA-28019 | YGA-34033 | 140163-1 |
| 304522-1 | Longfield Super Finish 29-Spline Toyota 4-Cyl 8” Ring & Pinion Gears – 5.29 | ARB-RD132 | EAT-70752 | EAT-TT70P52889 | YGA-28019 | YGA-34033 | 140163-1 |
| 304519-1 | Longfield Super Finish 29-Spline Toyota V6 8” Ring & Pinion Gears – 4.88 | ARB-RD132 | EAT-70985 | EAT-TT70P52888 | YGA-28020 | YGA-34034 | 140164-1 |
| 304520-1 | Longfield Super Finish 29-Spline Toyota V6 8” Ring & Pinion Gears – 5.29 | ARB-RD132 | EAT-70985 | EAT-TT70P52888 | YGA-28020 | YGA-34034 | 140164-1 |
| 304523-1 | Longfield Super Finish 29-Spline Toyota Hi-Pinion 8” Ring & Pinion Gears – 4.88 | ARB-RD132 | EAT-70985 | EAT-TT70P52888 | YGA-28020 | YGA-34034 | N/A |
| 304524-1 | Longfield Super Finish 29-Spline Toyota Hi-Pinion 8” Ring & Pinion Gears – 5.29 | ARB-RD132 | EAT-70985 | EAT-TT70P52888 | YGA-28020 | YGA-34034 | N/A |
WARNING – Cancer and Reproductive Harm – www.P65Warnings.ca.gov
4-CYL & V6
| TOYOTA PICKUP – Front & Rear, Requires 29-Spline Diff Flange, Nut & Seal (1979-1985) 1979 Toyota Pickup |
TOYOTA PICKUP – Rear Only, Requires 29-Spline Diff Flange, Nut & Seal (1986-1995) 1986 Toyota Pickup |
| TOYOTA 4RUNNER – Front & Rear, Requires 29-Spline Diff Flange, Nut & Seal (1984-1985) 1984 Toyota 4Runner |
TOYOTA 4RUNNER – Rear Only, Requires 29-Spline Diff Flange, Nut & Seal (1986-1995) 1986 Toyota 4Runner |
HI-PINION
| TOYOTA PICKUP – Front Only, Requires Hi-Pinion Housing, 29-Spline Diff Flange, Nut & Seal (1979-1985) 1979 Toyota Pickup |
TOYOTA 4RUNNER – Front Only, Requires Hi-Pinion Housing, 29-Spline Diff Flange, Nut & Seal (1984-1985) 1984 Toyota 4Runner |
| TOYOTA LAND CRUISER FJ80 – Front Only, Requires 29-Spline Diff Flange, Nut & Seal (1990-1997) 1990 Toyota Land Cruiser FJ80 |
LEXUS LX450 – Front Only, Requires 29-Spline Diff Flange, Nut & Seal (1991-1997) 1991 Lexus LX450 |
NOTE: Will not fit 7.5″ IFS front axles or 8” IFS Clamshell front axles.
Thomas (verified owner) –
It’s exactly what I wanted.
Benjamin (verified owner) –
Exit Offroad really does know what they’re talking about, they have the best product pages.
Bryan (verified owner) –
Spoke with Mike, he got me headed in the right direction for what I need.
Sean (verified owner) –
Exit Offroad really does know what they’re talking about, they have the best product pages.