Not sure how many cylinders, i'll check tomorrow. And it's a single axle, not a tandem. I'm sure it has more than 5 gears, I climbed in the cab to check but a swarm of red wasps made me get out quick! Might get a battery and see if she'll crank over just for kicks, heck we might even try to fire it up. I'll be sure to get some pictures once we tow it to the yard, sad thing is it's probably going to the scrapper.