Replacing pin holding landing leg beveled gear

When I had to replace a thrust bearing in one of my Atwood legs, that pin drive in fairly easily with a drift once the weight was off of the leg. (To replace the thrust bearing the leg must be removed from the trailer.)

My son, who is a GM Tech, says they sometimes can use a large "C" clamp to squeeze the pins into place fairly precisely. You can get a lot of leverage on those clamps with a short pipe extension in the T handle.