G'day Ezyrama
In regards to your question about the bellhousings on page 3, the 2a bell housing is the 4 cyl diesel one (3 bolt starter) and the S3 one is from a 6cylinder motor, upper bolt hole in 12 o'clock position,(same as early series 1's) the 2a box is the stronger of the 2 as the S3 all syncro box was known to be weaker as the gears were shortened to take the syncro hubs, also the S 3box lever would be near straight, if the Ser 3 was originally a 6 pot the firewall would have the extra bit to move the box bck to make room for the original motor.
I think Marks adaptors in Melbouren was the one that made those adaptors years ago. I think I have a Ser 3 4cyl bell housing around someware,but no 2/2a's
cheers
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