I bought my electric wipers from Chevy Duty a couple months ago. Kit was from New Port Engineering. Fit was into a '49 GMC. Install was a piece of cake... excellent instructions. Issues I encountered... the electric motor is MUCH larger than the vacuum motor. The under dash part of the wiper on/off switch is also large and I wasn't able to get it to fit in the original wiper switch location. Also, if you ever have to remove the speedo from the dash you will have to remove the electric wiper unit first due to clearance problems.
