All of the OD units are short tails. If you can, get all of the pieces from a Volare/Aspen, and then buy stock replacement clutch parts as needed.
Hydraulic clutch? as in a slave or hyd T/O bearing? The hyd T/O bearings are very expensive.
You will need to replace the rear gear. In OD your final drive would look like a 1.9... To maintain your 2.73 final you will need a 3.9 to start.
