1977 Dodge Van Class B Conversion Restoration Thread

Sounds like you are on the right track with the wiper problem. My 'new to me' '88 E150 wipers were broken - the dash switch was damaged. I had to order the part from Rock Auto - great place for older vehicle parts! The wiper switch in my late Dad's old E150 I inherited (a rusty ruin not worth rebuilding) didn't work - different connector as the newer van has the delay function the older van lacks. Keep this in mind as you order parts or get them from a junkyard vehicle - they often have different options.