I know the cables are unique to them and very thick. If they have no brokens strands, rust damage, or kinks, they should be OK. I don't recall seeing a parts list from them, nor do I remember ever having to repair one. They were built like tanks.
The only issue we ever ran across was trying to install them on floors that sloped to a drain, or weren't level. Usually not an issue in a home garage.
No idea what Hydralift model the B-52 crosses over to, but there seems to be quite a bit of HydraLift info on the web.
I do remember we used to get half a dozen at a time delivered by semi. One truck driver was a real character. He looked like Chief in One Flew Over the Cuckoo's Nest. Wanted to drop his trailer and park overnight and BTW, where is the liquor store? Gave him directions and mentioned they had good prices on beer. He says "Beer? That's kid's drink! I want whiskey!"
He gets in his truck while we were unloading and it quickly became obvious he had a female companion waiting in the sleeper.
While we unloading, they started going at it hard and loud and pretty soon the trailer was rocking so violently it was hard to stand up. LOL
