I installed a delay wiper motor from a late 90s Buick century on my 69 Olds. I made a custom mounting plate to position the motor to clear the brake booster and the stamping of the firewall. Once that was done, I had to cut up both wiper motor arms. The Buick motor didn’t fit the Olds wiper arm, the Buick wiper motor arm didn’t fit the Olds wiper arm transmission. I cut the 2 arms, put all the parts and pieces in place, and with the wiper motor in the park position, and the wiper arms in the park position, I welded the 2 pieces together. I kept welded arm length the same to maintain the original wiper arm sweep across the glass.
Once the mechanical part was done, that left the electrical issue. I got a bunch of broken steering columns from car theft recoveries. I took them all apart, cleaned, greased, and assembled them to allow me to have tilt, the headlight dimmer on the turn signal, installing the delay wiper switch in the column (no delay module needed under the dash) installed my original lock cylinder and hazard switch for the stock, unmodified look, and painted it the original color to match the rest of the interior. I removed the original wiper switch and used the empty spot on the dash to mount the Holley Sniper EFI control pad.
I see no reason why anyone with some basic steering column experience, and is somewhat handy with wiring and a welder couldn’t do the same using a later truck wiper motor. I have maybe 50 bucks total in this swap, and took maybe a weekend to do. If you get the steering column modifications done first, the rest could probably be done in a afternoon. I like modern automotive features, but I also enjoy the style and feeling of old iron. I enjoy combining them, but refuse to spend the big bucks for some of this stuff.
