I have a old 2 ton Harbor freight engine hoist I bought 15 years ago and In anticipation of my engine swap I added another 18" on the arm length and will be adding some length to the legs to prevent tip over. Found out how wobbly it is just moving the engine / tranny around after doing that lol. I added the length so I can come in from the front and not hit the bumper, I am going to make an attempt to put the motor and tranny in as one piece and wanted plenty of working room. I am looking at this double piston ram to replace the old HF single piston. Supposed to be quicker on the lift because the ram moves up on the up and down of the lever action. https://www.ebay.com/itm/331673599681 Now I am thinking about casters...it has the steel casters on them and they are old and rusty. I was wondering if there was a rubber caster out there that would work and support the load? I'm doing this on a semi-rough driveway that has some cracks in it and I don't want to hang trying to position this in the engine bay. Ideas?