One of my local wheeling buddies has them on his 85 Xtra Cab. He has had zero issues in many years. They need to be set up properly just like the bearings do. Get it too loose or too tight and you'll have issues.
I also thought the bearing would be smaller. They end up with more rollers and Marlin says that they are stronger. The angle of the rollers are also different.
I'm no engineer so I am definitely no expert in the matter. Thanks for the reply gnob.
Recommended when going to 37's?
I've never had a trunnion bearing fail...........yet since running 35's. I do have upgraded knuckle studs and I run KOYO or Nachi bearings. I also run hydro assist but I put a spacer in the ram to limit stroke just as the steering stops are reached.
I did see...