crossmember

I'm looking to buy an enclosed car-hauler trailer, and found one with a 3/4" thickness floor. The dealer said the floor's crossmembers are on 16" centers, but when I looked up the specs online, it said they're 24" OC. I'll have to check it out in person tomorrow and measure it, but was curious...

I have two 1995 f350s one with a 7.3 and other a 351, the 7.3 has a rotted frame and the 351 is mint, body frame interior ect.. I started pulling the motor out of the 7.3 to swap into the 351. I'm looking for input from someone that's done a swap. I know whats involved as far as wiring and...