Let me see if I can waddle through this with the correct numbers and sizes.
The M101 and M101A1 were 3/4 ton trailers meant to be pulled behind M37 and M715 trucks. They had 5 lug rims and no braking.
The M101A2 was meant to be pulled behind the CUCV trucks, had 8 lug 1 ton hubs and surge brakes.
The M101A3 was meant to be pulled behind the HMMWV and besides an offset spindle is the same as the M101A2.
Basically, the M101 series was meant for full size trucks. I can pick up the tongue and move the trailer around by myself.
The M105 series was meant for M35's and bigger. My M715 hurts pulling my M105's so don't go there with your S10. It took 4 adults pushing for all they had to push my empty M105 across a concrete loading dock and into the back of my M35. 2300 pounds empty weight comes to mind for these things.
I don't know when the M416 started production. I do know they were used behind the M151 trucks. The M151 was the 4 seat replacement for the Jeep M38A1 in the '60's and was used until it was replaced by the HMMWV. Everybody wants a M416 because they are looking for the same thing you are. Small enough to be pulled by anything, rugged, cool looking and big enough to hold a lot. (They even float when empty if the body is still good.) $700-$1500 depending on location and condition seem to be the going rate the last few months.
There is also a Canadian version of the M416. It is called the M101 in Canada. I think the Canadian M101 is a better trailer than the American M416 because of a few little things and they fact that they are newer.
A fellow member here, Kwai, has a Canadian M101 he put different hubs on so the bolt pattern matched his Rubicon TJ. One spare tire for his Rubicon and trailer. He traveled like that almost 3,000 miles this summer to Colorado and back from Houston loaded down with camping stuff and coolers. My point is that an American M416 or a Canadian M101 will really compliment your S10 better than just about any other M trailer out there.
