<VV> Differential filling port relocation

J R Read_HML hmlinc at sbcglobal.net
Sun Oct 18 13:59:27 EDT 2009

This is very imprecise, but I just lift the left side of the Rampy with a 
floor jack and then fill.  This will of course make the dif and tranny 
slightly overfull when set back to level.  Works for me.

Later, JR

'61 Rampside Standard 4/110
'65 Monza Convertible 4/140
"Keep the Love Alive"

----- Original Message ----- 
From: "Michael Kovacs" <kovacsmj at sbcglobal.net>
To: <BobHelt at aol.com>
Cc: "VV" <virtualvairs at corvair.org>
Sent: Sunday, October 18, 2009 11:05 AM
Subject: Re: <VV> Differential filling port relocation

So, OK I have a '61 that will have the diff removed for seal replacement. 
While it is out, what can be done to raise the lube level? I'm thinking a 
very short 90 degree adapter. If so, just how higher should the lube be that 
at the original plug level??

----- Original Message ----
From: "BobHelt at aol.com" <BobHelt at aol.com>
To: virtualvairs at corvair.org
Sent: Saturday, October 17, 2009 2:12:54 PM
Subject: <VV> Differential filling port relocation

Sorry, don't remember who was asking, but here is the Chev Bulletin info.
GM, Canada April 30th, 1962

"To improve pinion bearing lubrication in the rear axle, the oil level has
been increased 5/8" in production, commencing at serial
This increased oil level will be increased by re-locating the filler plugs.
The transmission plug will be increased from 1/2" to 7/8" pipe thread and
1/2" to 3/4" pipe thread on the differential carrier. These larger plugs
identify units with the higher oil level."

There was no mention of the increased lube quantity.
Bob Helt
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