So I changed the driveshaft on a 1999 1150 and now the RID shows no gears except Neutral and fuel guage only shows in Neutral and shows FULL. Looks like an earth issue?
Ok, it could it be a broken wire around the headstock area, i have read a few post on here saying thats an issue on these things, and its just sod's law kicking in that it has manifested itself at the same time you changed your driveshaft.
So, Multimeter and a a wiring diagram and check the grounds from the RID to the frame/engine.