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Providing Quality Parts to the Land Cruiser Community Since 1983 Page: knuckle
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Land Cruiser Knuckle Bearing Tech Note

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Knuckle Bearing Tech Note

SOR Photo
New Knuckle Bearing Race
(click for large picture)
SOR Photo
Worn Knuckle Bearing
Race (click for large picture)

Worn Knuckle Bearings

Up until 1998 the Land Cruiser used a straight front axle (or live axle) with closed steering knuckles. Each knuckle pivots side to side on knuckle bearings, also known as trunnion or king pin bearings. One top and one bottom of each steering knuckle. Knuckle bearings carry a large percent of the vehicle load - the bearings take a lot of abuse. Bearing wear occurs in the straight line position (see photo). Grooves wear into the bearing race and steering is no longer precise. To check for wear, put the front of the vehicle on jack stands and slowly turn the steering wheel side to side. If the wheels want to return to center or feel like they're clicking into detents, it is likely your bearings are worn. Another sign of wear would be loose knuckle arms.

Specter Off-Road sells a complete kit to correct this problem. The kit contains seals, knuckle bearings, gaskets and shims depending on model. The kit contains parts to do both steering knuckles. See part listing #080-400. If your bearings are in good shape but you are just servicing your knuckle and wheels bearings, SOR sells seal kits. The kits contain seals, shims and gaskets in one package to ensure you get what you need to complete the job. See part numbers #080-40 and #080-41. We also recommend consulting your service manual for procedures, torque settings and bearing load settings. To purchase a service manual, see pages 220, 221 and 223 The knuckle bearing kits do not contain wheel bearings.

While you're in there: If you are overhauling your steering knuckles, you will be disassembling the entire hub and knuckle and breaking free the tie rod ends. You may want to consider replacing your wheel bearings and brake pads. See part number 080-34 and 080-01 for inner and outer wheel bearings and page 081 for pads and shoes. You will run the risk of damaging tie rod boots so you may want purchase replacement boots see page 094.

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Specter Off-Road, Inc.

World's Largest Supplier of Land Cruiser Parts & Accessories. Providing Quality Parts Since 1983

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Phone: (818) 882-1238, Fax: (818) 882-7144, Email: sor@sor.com

Mailing Address: 21600 Nordhoff St. Chatsworth, California 91311 USA
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Confirm Your Part Numbers

Save yourself a headache, confirm your parts. Be sure the parts you are ordering will fit the Land Cruiser you drive. Ensure your production date falls within the timeframe noted on the “Fits” line in description for the parts you order. If you are not sure, give us a call, we’re here to help.

Example :
Buy
Quantity
Part Number
Description
...
1
088-100A-KIT
REAR AXLE BEARING KIT -
Fits 1963-9/73 Semi Float Axle…
...
1
088-100B-KIT
REAR AXLE BEARING KIT -
Fits 9/73-8/92 Semi Float Axle…
...

In this example, 088-100A-KIT fits a Land Cruiser built between 1963 and 9/73. The ending month/year means this part Fits vehicles up to but not including September 1973 or vehicles built between January 1, 1963 and August 31, 1973. The kit required for a 9/73 or September 1973 vehicle is 088-100B-KIT, which Fits 9/73-8/92 or vehicles built between September 1, 1973 and July 31, 1992. If the starting date or ending date is a 4-digit year instead of month/year, the part Fits the starting year, the ending year, and all months and years in between.
Fits 1963-9/73 - between January 1, 1963 and August 31, 1973
Fits 1963-1974 - between January 1, 1963 and December 31, 1974

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