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Re: [GMCnet] Final Drive Intermediate Axle questions [message #322549 is a reply to message #322547] Wed, 23 August 2017 12:45 Go to previous messageGo to previous message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
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Senior Member
I did just get an email from Manny--he's apparently been following along.
He's offered to send a replacement and I'm taking him up on
that--correcting the issue with this one will be something he's far more
skilled at doing than I am.

He thinks the most likely probability is that the bracket isn't straight
and it's pushing the shaft too far into the final drive.

For posterity, he tells me that the 3.21 axle bearing is indeed different,
with a slightly smaller inside diameter. He sleeves the shaft so that it
will accommodate the bearing used for the 3.07 shaft, and thus the bracket
is also used for that shaft. That's why there's no tab for the strut. The
bearing used for the original 3.21 shaft is obsolete and no longer
available. If I'm understanding correctly, he also sleeves the seal race
where it enters the final drive to use a better quality seal.

This is a most unusual problem--it's never happened to him before. I have
suspicion that this bracket was on a vehicle that had some damage that
pushed the bracket inboard in way that is hard to see. It wouldn't take
much.

Rick "good discussion--thanks" Denney

On Wed, Aug 23, 2017 at 1:10 PM, Richard Denney wrote:

> ...
>
> I'll bet I'm going to find that the bracket isn't really square--the
> mounting tabs and the part to which the bearing retainer attaches should be
> plano-parallel, and those tabs should be at a right angle to the axle or
> the bearing will bind.
>
>

--
'73 X-Glacier 230 "Jaws"
Northern Virginia
Offlist email: rick at rickdenney dot com
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