The yellow unit located in the speedometer cable as it leaves the 
transmission does not control the cruise control (the cruise control 
speed sensor is attached to the drive shaft behind the transmission).  
The yellow unit controls the transmission torque converter.  When 
this unit does not work the transmission will "hunt" at certain 
speeds and not work properly.

These units are prone to failure.  Even when they are working 
they can leak transmission oil.  You can purchase a new one 
from Nostalgic Motors, or I heard that they are available at the 
Avanti Factory in Georgia from a friend who was there at the 
conference last summer.  

I fixed my new unit from leaking (yes, a new leaking unit!) by 
drilling out the pop rivets, throwing away the bad gasket, putting 
some epoxy between the two pieces, and fastening them back 
together with some small stainless steel screws and nuts.  

Tom Gipe
RQB 3636   May 2002
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