I need ideas for what was made, in crawler loaders. The only thing I can think of is oliver's OC tractors, and dont even know if they had loaders, or just a dozer blade. I have been loading thin chicken manure in my spreader, and spreading it on my pasture grass. the WD45, with Dual loader is almost helpless, backing out with a load, and is tearing up my grass spinning. I have a 3pt tandem disk on it, or else I would still be at the pile, with the first bucket full.I had 150 yd's hauled in and dumped in a low spot on my pasture, and found that the stuff they were bringing, was like thin mud. I will get this spread eventualy, but will have to level spin holes, and replant the area, after I am done spreading the stuff. I want to get a small track loader for next time,so I dont damage the field so bad, and it cant be any more trouble to operate than that monstrocety that I have been using. I cant justify a 4 wheel drive tractor, with loader, with my small operation, or the trouble and expence, to reverse the loader on the WD45. I realise that I will probably get something, that needs new brakes, clutches, tracks, and or rollers, if I buy what I can afford, but am wanting to go to tracks for this. What did IH, JD, MM, Oliver, or Case make in the 50's and 60's, in that type of tractor?