A/C R12 to R134 Changeover

[SuffolkD at aol.com]

I think its at 1994.  Ford is a '93 w/R-12, My 1990 Avant was "converted to 
R-134A"
Check for a sticker.  The port size threads on the fittings are the clue.
Don't know which gets the bigger threaded connection though......
HTH - Scott by BOSTON

In a message dated 1/27/2004 7:00:48 PM Eastern Standard Time, 
quattro-request at audifans.com writes:
> From: Todd Young <auditodd at comcast.net>
> Subject: Re: A/C R12 to R134 Changeover
> Funny, my '93 90S has R134a.........
> David VanderSchaaf wrote:
> > I believe it was right around 93-94.  My father's early 93 90s still has
> >