Thanks for all the ideas folks I'll add to my OP maybe that'll help explain it better.
I started the dozer to move some snow banks back, let it warm up for 10min or so. Jumped on and started out slow like allways {1200rpm} moving around just getting things warmed up. Once I ran/drove it for a few min. I brought the rpms up to 1600rpm and begain my work, everything was going strong. Had no issue's, dogging or over working, actually snow is kind of like plowing puffy clouds, IMO real easy work for this dozer. I plowed for a good hr and noticed it started to grind a little when shifting back and forth into gear. At 1st I figured maybe my foot was getting lazy{operator error} so I started paying close attetion and making sure the clutch was depressed all the way. From there things got worse it slowly and steadily got to where I had to shut it of to put it in gear to limp back to the shed.
Basically it acts like direct drive, the clutch depressed will stop it if it is pushing on a some what inmovable object{snow pile etc.}
Bob Rooks; I would say it had .75 to an 1" of play. It never did stall the engine just acted like the clutch would not disengage all the way. I hope the above helps explain what is going on better.
Gene :^) ; I was wondering the same thing, my jinma tractor had the same issue as yours I replaced the pin{double if I remember correct} and it never had another issue. I do agree with Bob Rooks though I don't think I'd weld that arm, easier to keep an issue out side then cause internal problems. I'd much rather just replace a pin every now and then compared to tearing down the machine.
Thanks again for the opinons/advice/help folks every little bit gets me pointed in the right direction IMO :thumbsup: :drink: