Give it a try. In the blue collar jobs I've worked (including the one I currently work), the guys are friendly, more liberal on the inside than they like to admit, and they - we - are a tight-knit group. I see many of them as my friends rather than just co-workers. It might take some more explaining and they might make a few more off-color jokes, but it would be without malice.
Contrasting this to some of the white collar work I've done in the past, where the atmosphere was all about making money and focusing on work, I would have a far harder time transitioning from behind a desk and a stack of paperwork than I would out getting my hands dirty with the guys.
The blue collar guys seemed far easier to get along with. If you could do the job well, you were cool with them. But white collar workers sometimes seemed to be far pettier when it came to their co-workers. They would worry about office politics, who to be seen with and who not to be seen with, water-cooler gossip etc. The blue collar guys I work with would be shocked and confused for about ten minutes, then they'd just accept me for who I am and move on.
Your mileage may vary.