Quote:
Originally Posted by old guy
The 4Runner is a 2014 w/ 62k on it while I was under it I was looking around and noticed every weld on the frame was rusted !! I’m disappointed to say the least, I had to get rid my last 4Runner a 1997 because the frame rusted and broke. Traded it to a buddy for some Custom made cabinets In the garage, he found someone ( no one wanted to ) weld it and he’s still using it as a daily  just had to have the other side welded a few weeks back |
Very common problem with all Toyota trucks. There have been recalls for frame rust issues on a bunch of Tacoma generations and I think the 3rd and 4th gen 4Runners too. Unfortunately, I don’t think they’ve done a frame recall yet on the 5th gen yet (2010-present).
I would prep and then paint the frame with por 15 and try and get as much as possible coverage inside the frame rails, they tend to rust from the inside out a lot of the time. I think kbs coatings also has a good frame rust repair/preventative coating as well but I haven’t looked into yet so I’m not sure if it’s worth it or not.