Does anyone know of a manufacturer of a 90 degree adaptor that would fit on top of the tranny so the Speedo cable does not have to make such a tight curve at that point? Thanks!

 

I searched for one myself. Couldn't find it. If you have a local speedo shop, they should be able to make one. I priced a custom made one from the local speedo shop here and it was going to be $200-300.

I'd rather replace the cable if the current one breaks.

 

I got a replacement cable from Antique Auto Supply in TX; it had a nice steel wound sheath that made it easy to get a nice smooth arc out of the trans connection. No issues. It was also the right length and connections, unlike the plastic-sheathed one I got from LMC.