[Nor Cal Al]

I had the same problem with my Backdraft #128. Reg told me to remove the bushing on the little driveshaft in the right angle gearbox that attaches to the back of the speedo. It tended to bind up. I did, then packed it with silicon lube and it did fine. I had mine replaced by Autometer when the dial face came off. The new one does seem to run smoother than the old one. Had about 6K miles on it. Be sure the connection on the back of the speedo is tight also. Talk to Reg or Autometer. Autometer was very responsive.
AL