Allison CT-3340 info

looking for some info on a CT3340 4 speed trans. i have one in my new to me S7 Euclid scraper first and second shift nice and no slip. if you go to grab 3 or 4 it like just hitting N. is it a 2 speed with a hi-low or a true 4 speed. i will be fixing it my self as it's a hobby toy and dose not have to make money but would still like things to be right. looks to be a all maniacal shift cable from the tower back to the tans. my serial Number is 256 part no 6759832. the P O had used it for...

Allison CT-3340 info

Allison CT-3340 info