S4 Blackhawk Jack Universal Joint

[Bull]

Have any of you ever repaired/replaced a broken u joint on a vintage Blackhawk S4 4 ton jack? I have this beast just sitting here because of that issue. I think I saw a guy on here looonnngg ago use a Craftsman socket ujoint to fix this ussue but I can't find the thread and don't know how it would be done.

Thanks very much.

 

[RTM]

I bought one of these for a much newer, and much crappier floor jack. With some measuring for diameters and lengths, it might work for yours.

https://www.amazon.com/gp/product/B07SGXY4L6/?tag=atomicindus08-20

 

[whateg01]

I made one for a Jack awhile ago. My s4 could use a new one but it's still way down on my list

 

[lilredex]

Don't know how close this is to yours, but I could see using a 3/8" drive "U" joint to save all that work.

Floor Jack Repair - HomemadeTools.net

A friend of mine broke the diecast universal joint in his Craftsman floor jack. He couldn't find a replacement universal so, in looking at the broke

www.homemadetools.net

Some pictures might help.

 

[MattK2]

I saw a U joint that might work for a Blackhawk on the Pit Boss website. They make racing floor jacks.

SHOP | PIT BOSS JACKS

Pit Boss Racing Jacks Web Store

www.pitbossjacks.com