From: Wes Shew <schumi@vcn.bc.ca>
> I recall reading way back that the pick-ups were the only A1 cars with an
> unusually high final drive ratio? 4._ vs. normally 3.8 or lower? Anyone
> know if that is correct?
You are thinking of the transmissions for diesels.  They have a 4.25 ratio
compared to the gas 3.89 ratio.  The interesting thing I found is finding
documentation that can back it up.  Here's a list of the Bentley and Haynes
service manuals I have and what they list for 4 and 5 speed diesels:
Bentley 75-79 A1     3.89
Bentley 80-84 A1     3.89
Bentley 85-92 A2     3.89 and 4.25
Haynes (US) 74-84    3.89
            75-89    none listed
            75-92    none listed
Haynes (UK) 74-84    3.89, 4.06 and 4.57
Only the A2 Bentley and the UK Haynes list alternate ratios for diesels.
The others still say that diesels use the 3.89.
I don't have the Bentley 77-84 A1 diesel manual so this may have the 
key information.
Jonathan
jdove@gsvms2.cc.gasou.edu
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