question about this M37

[ylos.com]

Hello, I am from Spain and I need some info about this M7

http://www.yclasicos.com/spa/item/Dodge_m37_corea.html

a few questions about it ! :

- where I can see his year? (the number is # 815955448 any web or link?
- this M7 have a trail, is it original in this position? (I think not, but ..... )

Thanks for your help !

 

[Carter]

M37 serial number link: http://www.g741.org/ProductionDates.html
I have never seen an orig. M37 with a rear mounted winch. I believe it was added after leaving the Dodge factory. More information about M37s is available at this site, several members are also from Spain:
http://g741.org/PHPBB/index.php?sid=72b516b9c7d031ae2387cefd18ec3043
Carter