[DeTomaso] Frozen Trunion Shaft

[Charles McCall]

Assuming you're talking about what I think you are talking about, the only
choice is to cut it apart. 

It will suck. Been there done that. It wasn't fun. 

It is also completely consistent with the failure Chris had. The shaft
became frozen, which means that the arm bends instead of the shaft rotating.
Eventually the arm will break, which is what happened. If the shaft is so
frozen that it won't allow the arm to rotate, I doubt you'll be able to
drive it out. 

I had to cut through the cap and the shaft. Be careful because there is a
little nipple on the hub carrier that keeps the thrust bearing from rotating
- you don't want to cut that nipple off. 

Take a good look at the diagram in the Parts Manual, then you'll need to cut
through the cup and probably a washer or two to get to the shaft. Make sure
you have new parts on hand from your favorite vendor before getting to work.
There are two designs - one has zerk fittings in the end of the shaft that
squirts grease throughout the hub carrier, and a second design that requires
you to drill through the hub carrier and bearing. Ask which one is better
(as I did) and you'll get completely divided answers (as I did). 

Good luck and be glad that you have help.  

-----Mensaje original-----
De: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] En
nombre de Mike Thomas
Enviado el: Saturday, 08 March, 2008 7:31 PM
Para: detomaso at realbig.com
Asunto: [DeTomaso] Frozen Trunion Shaft

Doug Braun and I are helping Chris Kimball get his car ready for Vegas.  We
have the right rear upright undone from the ball joint and are trying to get
the trunion shaft loose.  It is frozen in the bottom of the upright.  We
have tried to get some liquid wrench in there, and have been whacking the
ends of the shaft (with nuts in place) for some time, and it will not break
loose.

What are out options at this point.  We have heard that some have cut
through where the face of the thrust bearing assembly cap is, but that looks
tricky as hell.  

Any and all ideas are welcome.

Thanks in advance.
Mike Thomas, Pres
Panteras Northwest

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