Mike,
Yes it sounds like a "Limited Slip" or posi rear end, I came across one
about 18 years ago at a wreaking yard in an early '60 1/2 ton. bought just
the drop out, for $65.00. As far as I know, that rear end posi or not with
the 3.90 raito was used from 55.2 (or earlier) through '67 or '68, might
check the parts cross over manuals. But for those of us with 4x4's and too
much power, they are really great to have! As for taking it apart , I
havn't seen the inside of mine for 18 years....
Sheldon Schmidt '56 napco 4x4
-----Original Message-----
From: MASK4335@aol.com [SMTP:MASK4335@aol.com]
Sent: Wednesday, June 30, 1999 3:05 PM
To: oletrucks@autox.team.net
Subject: [oletrucks] What rear is it?
Help Gang,
I recently bought a rear end for my '48 3100 at a swap meet. It is
externally identical to the original closed drive rear that was in my
truck.
The seller said it was original in his '57 1/2 ton chevy with 3.90 gears.
While preparing to weld up the spring perches, I removed the stump to
inspect
the gears, bearings, etc. Behind each of the axle gears there is a stack
of
clutches. I know this is a truck rear because it has the 6 lug axles and
as
I said is identical to my old one except it is an open drive. My old rear
had none of these clutches either.
Questions -
1. Can this be an early posi-traction rear?
2. Were they an option in '57 trucks?
3. And most important, how do the little clips (8 total, 4 of two
different
types) go that hold the clutches in the housing?
4. Does anyone have a supplement to the shop manual for posi-traction
rearends that can be e-mailed, faxed, mailed?
The seller said nothing about it being a posi-traction unit and my shop
manual does not cover posi-traction rears so I need some help here. Thanks
in ADvance.
Mike Klepp
'48 3100
Wichita Falls, TX
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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