[TR] Rear Hub Bearing Replacement

Jack Mc McGaheyRx at aol.com
Wed Jan 17 11:11:01 MST 2018

You are in far greater danger of having the stub axle in the rear hub break than you are of having the bearings ever seize. They all are going to break some day at one end or the other of the key in the key way. Here are 3 actual examples:

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Some people (including me) believe they were all broken the day they cut the key way in the shaft - it just takes 40 to 50 years for them to finish breaking. 2 of the above 3 owners were extremely lucky in that they broke at low speed while accelerating, felt something wrong and brought the car to a safe stop before the wheel/hub assembly left the car.  In the 3rd case ...well ...that happened during a race - the wheel/hub/brake assembly left the car, the flailing half shaft beat the trailing arm into many pieces, but the car hit a tire wall before it could finish turning over. You might not be so lucky, so please skip option 1 and go straight to option 2 or 3.
Jack Mc

PS and oh yeah the CV jointed axles are a big step up - even if there is no play in your splines, they do lock up under load - and the CV joints eliminate the 4 u-joints they you should replace if you don?t upgrade the axles.
Sent from my iPad

> On Jan 17, 2018, at 9:18 AM, Rochlin Robert <rrochlin at comcast.net> wrote:
>   I?m considering replacing the rear hub bearings in my TR6 as preventative maintenance.  The hubs have about a 100,000 miles and 46 years on them and my thought is to replace them before they seize and ruin a perfectly good day of cruising.
>  As far as I understand, I have three different options:
>    1. Just send the hubs out to replace the bearings. (I don?t have the proper tools to do it myself) 
>    2. Replace the hubs and half shafts with Goodparts replacements  - expensive  
>    3. Replace the hubs and half shafts with the Goodparts CV joint replacement - also expensive.
>    I don?t seem to have any symptoms of the splines wearing on my present half shafts, but I?ve hear of others ho have had wear problems with the splines.  Is there any real upside to the CV joint half shaft replacement over the splined half shafts?
>    Also, If anyone has good a good reference for an outfit to replace the hub bearings I?d appreciate it. I know that improper separation of the hub can ruin it.
>    Best wishes,
>    Bob
>    ?72 TR6
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