<VV> '65 3-speed is non-synchro, but '66-'69 is synchro?

[BBRT]

No. The very early three spds were non-synchro in first (1960 Aluminum 
case). All later three spds had three speeds with synchro. All Four spds had 
all synchro gears. Yes, 1965 is a transmission that is similar to 
1961-1964..Engineering changes within. 1966-69 is different.
No, your theory is full of hot air. All Corvair synchros were of similar 
brass material; 1959 thru 1969.   No freaking GL 5 in any Corvair manual 
transmission! What is so hard about that? (I acknowlege there are folks who 
have perhaps successfully used GL 5. Wonderful. Maybe the newer GL-5 has 
sufficient inhibitors that it will not affect brass synchros..to me, the 
jury is still out.)
Seems to me, quit fighting the problem. Buy GL 4. How much of the stuff are 
you going to use, anyway?
Try to stay in range of recommended oil ratings/weights.

PG owners, use whatever you like..

Everyone. Wonderful articles on Corvair manual transmissions by Craig 
Nicholes and Bob Helt. The Corvair Basics many of us contributed to..lots of 
good stuff. Classic Corvair by Bob Helt is vry good.  Buy the Tech guide. 
There are so many tech tips, you will be amazed.. Buy it!

Chuck S


----- Original Message ----- 
From: "Charlie via VirtualVairs"

That was my point -

As long as we're splitting hairs :

The '65 was non-synchro in 1st, and the '66 was synchro in all 3 gears,
right?

So the '65 and '66-'69 WERE different and the GL-4 vs. GL-5 discussion did
not make this distinction, or at least I failed to miss the one that did,
among a gazillion others?

Charlie


-----Original Message-----
From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On Behalf Of
Frank DuVal via VirtualVairs
Sent: Tuesday, April 07, 2015 9:07 PM
To: virtualvairs at corvair.org
Subject: Re: <VV> '65 3-speed is non-synchro, but '66-'69 is synchro?

Most every GM 3 speed transmission from the early 30s to 1965 has synchros
in second and third gear. It is first gear that is not synchronized.

Frank DuVal

On 4/7/2015 11:50 PM, Charlie via VirtualVairs wrote:
> I thought the '65 3-speed was non-synchro, but '66-'69 is synchro?
>
> Another "urban legend"?
>
> Charlie
>
>
> -----Original Message-----
> From: Daniel Monasterio González [mailto:dmonasterio at hotmail.com]
> Sent: Tuesday, April 07, 2015 7:05 PM
> To: Charlie; 'Vairtec Corp'
> Cc: 'Virtual Vairs'
> Subject: Re: <VV> Making sense of a gazillion posts on GL-4 vs. GL-5
> (Yes, I did read them)
>
> Corvair 3sp transmissions should use GL-4 as they have bronze
> synchronizers too.
>
> Daniel

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