Dale, It is an inch shorter. With all the mods for the brackets, I will
definitely take your advice and see if I can swap it for the correct year.
Thanks for the Chevellestuff link info.
Jim
----- Original Message -----
From: "Dale" <[EMAIL PROTECTED]>
To: "'The Chevelle Mailing List'" <chevelle-list@chevelles.net>
Sent: Monday, July 09, 2007 11:21 PM
Subject: Re: [Chevelle-list] 12 Bolt Posi Rear
Casting number 3875745N shows it to be a 66 12-bolt rear. CO is 3.31
w/metallic brakes and Positraction. It's 1 to 2 inches narrower than a
68-72 rear and should have a different spring perch arrangement; lower
coil
is larger and a plate bolts it in place as opposed to it sitting on a 'top
hat'. Honestly, it's worth more to a 66 owner looking for a good rear end
as they're getting harder and harder to find. Any 68-72 Chevrolet rear
should bolt right in.
You might want to read the bottom of this page -
http://www.chevellestuff.com/generic/axlecodes.htm
Dale McIntosh
1966/67 Chevelle Reference CDs
ChevelleStuff.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jim Sullivan
Sent: Monday, July 09, 2007 9:37 PM
To: The Chevelle Mailing List
Subject: [Chevelle-list] 12 Bolt Posi Rear
Can anyone tell me what this 12 bolt is out of and will it fit in my 69
Chevelle?? The mountings are a little different, but measure up pretty
close to my 10 bolt.
It's 3.30 gears.
Posi Unit EO - 30140PMI
Tube Stamped C00118B
E
Case castings GM1 3875745N
L306 Looks like?
As always, any help greatly appreciated.
Jim
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