the magnets are strong! I can lift the whole car by the body, and the magnets hold together. It took some cutting to make them fit right on my TRX4 bronco though. The holes were out by ~ 1mm, and the bracket flexed badly until I trimmed the holes larger. once I eliminated the curve, and the magnets could contact flat, they got very strong. Also, i had to cut about 6-8mm off the bottom of the stock body stands, so I could lower them by 4 holes each.
fit well after adjusting body post. positive side effect the body does not rattle anymore. trx4