I have never worked on your model. I have a 7753 and did the right rear bearings. On that model you can't use a socket to loosen a nut and thus I had to cut up an old 1 1/4"??? wrench to put a pipe over to get leverage. The book said it was 450 ft/lbs torque.
I needed a 10 ton porta power...
Here's the most basic of items. The parts book. At least you know the names and can talk without using the word "thingy". https://www.bobcatpartsonline.com/#/catalogBrowser?path=%2F0000-Loaders%2F0000-642%2F0001-504025001%20%26%20Above%2F0007-Power%20Unit%2F0002-Engine%20%26%20Attaching%20Parts