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TR4/4A TR4A rear axle removal

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tban52

tban52

Freshman Member
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Hello all,

I am in the process of removing the rear axles on my 67 in order to replace badly worn U-Joints. I have them disconnected from the differential, but I do not know how to remove them from the swing arm assembly. I have the outer axle shaft nut removed, and I thought the outer axle shaft could be tapped out. I don't think so..... Can anyone advise me how to proceed?

Thanks in advance. Terry
 
I believe the TR-4A IRS setup is the same as the TR6
Start by putting the outer shaft nut back on again, you shouldn't remove it, that will need re-torquing again when you have everything boxed up again.
Once you have the brake drum and brake shoes removed you can access the six small nuts through the two large holes in the drive axle face using a socket on an extension; just rotate the shaft to access each pair in turn.
Once you've removed the six nuts (which may come off with the studs attached) you can pull the whole axle assembly unit out through the trailing arm, the drive plate at the differential end will just make it through the T/A, be carefull not to seperate the splined connection as you're withdrawing it and to support the unit with both hands as you go, it's kind of floppy.
You can now put it on a workbench and change out the U joints. Make sure to keep all the proper alignment of pieces as you do the UJ's, scribe a mark on all pieces so you know which way it goes back together.
Warning, as you put the six small nuts/studs back into the trailing arm, be VERY careful with the torquing (I think they only need 14 ft/lbs (check the manual) you can EASILY strip the aluminum Trailing Arm threads, then you're in trouble.
 
Terry,

I'm with Graham on this one.

I'm fairly certain the TR4A and my '69 TR6 have the same
rear wheel hub configuration. This "How To " has what you
are looking for. Some good photos of the procedure.

https://www.scribd.com/doc/92509/TrailingArmBushingsFinal

It is super critical that you do not over-torque the six
nuts that secure the hub to the trailing arm. The TA
threads are fine aluminum and the 5/16" studs are steel.
The steel will strip the aluminum quickly if you over-
tighten.

If a stud spins out with the nut during the hub removal,
clean the TA threads with a tap, install a new stud and
use Loctite blue. I replaced all six studs (thanks Paul)
and tightened them strong finger- maybe 2 pounds.

hope this How To helps.

dale
 
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