My 71 GS has been fine up until tonight, the last cruise of the year. The tail, brake and flashers all work fine but neither blinker works. When selecting left or right, there are no dash indicators and no click under the dash. I've checked the flasher, swapped the two and flashers still work but no blinkers. No burned bulbs and I used a jumper at the DIR SIG fuse to short around it if it was blown, also no blinker. I'm thinking something in the column. Any test points to see what I'm getting? I have a 1970 manual that I'll look at shortly but I know the wiring changed in 71.