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[GMCnet] 3.21 Final Drive [message #79704] Thu, 08 April 2010 08:19 Go to previous message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
Senior Member
A non-GMCNet buddy is going tomorrow to collect the 425+3.21 we've been
watching for a couple of years. He's a retired Delta mechanic, has had
several GMC's, helped me install the front clip in the X-PB and recover it
from TN, helped me install the Cad, etc., etc., etc. So he's no amateur --
just never done a 3.21 before, nor have I.

So, it's time to gather all the details we need to know about installing it
in his GMC. I've got only sketchy recollections:

1. The cover gasket's no longer available so we'll need to make one or RTV
it. Right?

2. There is a gasket between the transmission & FD that IS still available
-- Anyone have a P/N?

3. The output shaft is unique (and is with unit he's buying), and the seal
for it's no longer available. A sleeve must be applied or a seal just
identified by Larry Weidner used -- I can't find Larry's posting -- Someone
please tell us what we need.

4. There was some mention somewhere about the output shaft and the idler
bearing -- what's that all about?

5. Any other details we need to know?

TIA,

Ken H.
Americus, GA
'76 X-Birchaven
www.gmcwipersetc.com
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
 
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