I only recall the 50's Buicks having LH threads on the drivers side only. Maybe others but thats all I've experienced. A strange arrangement for sure. Never saw it on trucks


1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain