Axle Overhaul

Part 1
Part 2
Part 3
Part 4
Part 5
Part 6

Intro

My knuckles were weeping a mixture of diff oil and grease, they were caked in thick gumpta, I had a shimmy at 55mph and one of my Aisin hubs had grenaded, so that my front diff was always locked. Time for a rebuild.

Update

It's June 19th, 2003, almost four years after I first wrote this document as a newbie to cruisers and auto mechanics in general. I got an email from someone doing their first knuckle overhaul on a cruiser, asking some questions. Here's my reply, with advice. I still don't know what I'm doing, but I know a little more now than I did before. :-)

Cost

I got the knuckle rebuild kit and a hub socket from Warden's Auto Repair in Placerville for $150. The kit has everything but the inner & outer wheel bearings and races and the spring clips on the end of the inner axles. It later turned out I needed these. I bought the outer bearings, races and spring clips from Freeman Toyota in Sonoma, CA for ~$75 with my TLCA discount. A day later I "discovered" the inner wheel bearings, removed them and found they needed replacing. The prices for new inner bearings/races I got from Specter and Freeman were $39.80 and $42.46 for each side. Figuring I could do better (but figuring this out too late) I called a local bearing place in San Francisco with the bearing numbers, and got them much cheaper: $18.02 for each side, $36.04 total!

In hindsight I could have probably gotten a better deal by buying a gasket set and replacing the bearings at a bearing shop after I pulled them, instead of getting them through Toyota.

Part Numbers

Bearings
  Original Parts New Parts
Inner wheel bearing Bower JLM104948 Japan same
Inner wheel race Bower JLM104910 Japan same
Outer wheel bearing Koyo LM102949 Japan  
Outer wheel race Koyo LM102910 Japan  
Knuckle bearing Koyo 30303D Japan Koyo TR0305A
Knuckle race Koyo 30303D Japan Koyo TR0305A

Tools

Some of the tools I used for this job are pictured below:

A partial listing:

Other

You'll need a lot of rags. No, more than that. Get at least 4 pounds of lithium molybdenum wheel bearing grease, a gallon of 90 weight oil for the diff. I recommend a big plastic tub and some strong degreaser too. The two first active ingredients of the stuff I used - STP Grease Eater - were butoxylethanol and sodium metasilicate. Next thing on the shelf at the same price had the same ingredients. Worked good.


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Morgan Fletcher <morgan@off-road.com>
Last modified: Mon Oct 11 11:30:37 PDT 1999
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