I have an 84/305/4spd. my problem is well several all of which I attribute to the steering column switch. the cruise control doesn't work have run tests and all lead to wiring in column. Also wiper pump will throw fluid while wipers are on and no intermittent wipers (won't work). also now getting the left signal go on when the right signal is on. Was told by friend mechanic that it is the switch. looked it up in the manual and stated that take off wheel and plastic cover with some tool. can i substitute this tool. Anyone have similar problems. would like to change steering wheel while i'm in there.