Consider this. If your needle is on incorrectly such that the speedometer can not return to the stop, that would explain why is doesn't move until you are up in speed. It appears you may have an offset error of -18 mph. The needle being on wrong fits in with the offset error too.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!