Revolution Gear & Axle 98-07 Toyota Land Cruiser 9.5in Rear Open Ring & Pinion Master Install Kit
The 100 Series Land Cruiser is known for running forever, but high-mileage trucks that tow, carry a roof load or have been lifted on larger tires eventually develop a whine or growl from the rear axle. The Revolution Gear and Axle 35-2057-100 is a master install kit for the 9.5 inch rear differential with the open carrier in the 1998-2007 Toyota Land Cruiser 100 Series. Use it to rebuild worn bearings on the original gears, or to install a new ring and pinion when you regear for bigger tires.
The 9.5 inch rear in the 100 Series is a drop-out third member: the center section comes out of the housing as one unit, so the gears can be set up on a bench. The pinion is supported by two tapered roller bearings held under preload by a crush sleeve, and the carrier spins on two side bearings. Shims under the pinion head and behind the carrier bearings decide where the gears mesh. When the bearings wear, the pinion can move under load and the gear contact shifts toward the tooth edges, which is where the noise and eventual tooth damage come from.
Revolution lists the kit with Timken bearings and includes the pinion bearings, carrier bearings, pinion and carrier shims, crush sleeve, pinion seals, ring gear bolts and gasket or silicone. Axle seals are not included. Land Cruisers changed the pinion from 27 to 29 splines in the 2003 model year, and Revolution packs two pinion seals so the kit covers both versions.
Drain the oil and look at the plug and the oil. With the driveshaft off, try to rock the pinion yoke up and down; any play points to the pinion bearings. Spin the yoke by hand and feel for roughness. Because the Land Cruiser rear is full floating, worn wheel bearings can sound like a differential, so lift each rear wheel and check it for play first. Our backlash and pinion depth guide shows how to measure the existing gears so you can decide whether to reuse them.
Revolution lists 35-2057-100 for the Toyota 9.5 inch open differential rear axle in the 1998-2007 Land Cruiser 100 Series. If your truck has the factory rear locker, it needs the locker version of this kit; ask us and we will match it, or see the Yukon kit for the 1991-2007 Land Cruiser 9.5 rear with e-locker. The 2008-and-later 200 Series and the Tundra use a different 9.5 inch kit, and the earlier FJ trucks use the older Land Cruiser 9.5 bearing kit. The safest check is the numbers on your old bearings and races, or send us the year and VIN. More axle kits are in our rebuild kits collection.
Mark the bearing caps and adjusters before teardown, and keep the original pinion shim as the starting point. A side bearing puller set makes the carrier bearings easy to remove without damage. Revolution's chart for the Land Cruiser 9.5 lists a starting pinion depth of 0.020 in., pinion bearing preload of 8-11 in-lb, backlash of .006-.010 in., 100 ft-lb on the ring gear bolts and 75 ft-lb on the bearing caps. Bring preload up slowly with an inch-pound torque wrench, because an over-crushed sleeve has to be replaced. Read the pattern with marking compound and check backlash with a dial indicator and magnetic base. If you are regearing, do the front 8 inch at the same ratio with the 98-07 Land Cruiser front master install kit. Fill with the hypoid gear oil grade in your owner's manual, follow the ring and pinion break-in procedure on new gears, and change the oil after the first 500 miles.
| Brand | Revolution Gear & Axle |
| Part number | 35-2057-100 |
| Fits | Revolution Gear & Axle 98-07 Toyota Land Cruiser 9.5in Rear Open Ring & Pinion Master Install Kit |
| Vehicle fitment | Toyota Land Cruiser (1998-2007) |
| Type | Differential Install Kits |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. 35-2057-100 is for the open differential. Revolution sells a separate locker version for the 1998-2007 rear. Check for a rear locker switch on the dash before ordering, or send us your VIN.
Revolution notes the Land Cruiser pinion went from 27 to 29 splines in 2003 and includes two pinion seals so the kit fits either version.
No. It is the bearing and setup kit used to install a ring and pinion or rebuild the original gears. Gears are sold separately.
No. Revolution lists axle seals as not included. Order them separately if the rear axle seals are leaking.
Yes, if the teeth are not pitted, chipped or heat-blued. Measure backlash and pattern before teardown so you can set the old gears back to where they ran.
No. The 2008-and-later 200 Series and the Tundra 9.5 use a different Revolution kit. This one is for the 1998-2007 100 Series.
