Installing LT headers on my car without dropping the k-member...Did a buddies and we dropped the k-member...1000x easier
Changing 150k mile ball joints that still had the factory rivets would make you find religion.
Getting the starter off my Mustang seemed like the most ridicules thing I've ever had trouble with. The top bolt was terrible! I ended up just leaving it off when I re-installed it.
Putting plugs in my 04 F-150, all 8 broke.