![USA :usa:](https://board.marlincrawler.com/Smileys/marlin/usa.gif)
dude you found the HOLY GRAIL of toy trucks
![The Ladys Man :ladys-man:](https://board.marlincrawler.com/Smileys/marlin/ladys-man.gif)
look under the hood, probably on the pass side fender and look for a 2X3 metal tag, you should have either a L-50 or L52 5 speed, also look for your axle codes, G292, G102 something like that, that will give you the gear ratio of the diffs