Information on a Holt Winch

I just bought a D4 7u with a holt winch. I understand they are the less desireable of the winches. I can find very little information on this holt winch. Anyone able to steer me in a direction to find any info? I would like to put it on my other cat.

I have another 7u that runs and operates well. I bought this second machine and a parts donor. The motor runs good. I have never seen a worse set of drive sprockets, the upper idlers haven't turned in years and are warned through to the shaft. The tracks are shot. The steering clutches are frozen, kind of harry loading with the sprockets slipping! It has an electric starter and a pony motor. The pony turns over but hasn't been ran in years. This poor old girl has been neglected. The blade is rough but usable. As I begin to tear into this machine I will have some parts to sell, like the blade.
Would appreciate any help with winch info
Wyatt