mudrock, if it is the predecessor of the HD8, it may or may not use some HD8 parts. One possible solution is to get the corresponding parts from a defunct HD8 and see if they fit. As long as they are a simple bolt-on, using existing holes, no harm would be done by trying this. Then you would move your existing tensioner by bolting it in the existing holes in the upper position above the clutches; fit a pair of HD8 idlers by bolting them in the existing holes; and check what belt length is then required by running a piece of rope around the circuit in the same way as for an HD8. The other possible solution that comes to mind is contacting Greenfield, as Rong did in the other thread, and seeing what you can learn from them.
Note that Rodeobob has several HD8s, and he may be able to provide some details, or perhaps even some parts. He has not visited Outdoorking since last May and is unlikely to see a Private Message, but he has a phone number in his personal details in the User Information. If that does not work send me a PM and I will try to put you in touch with him.
