Saving an old Craftsman Floor Jack

[astroracer]

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 pieces, I figured it wouldn't be that hard to make a new one out of steel.

The pieces aren't that big. Only 3/4" in diameter. All of the parts after dis-assembly.

I found a piece of 3/4" diameter steel in the drop pile.

I cleaned up the OD in the lathe, faced off the ends and drilled out the bore's for the mating parts. Test fitting the parts.

With that done I clamped the piece in the vise on the mill and machined off both sides.

With that done I picked up the ends and center drilled for the pin holes.

After drilling out the pin holes I flipped the part 90 degrees in the vise and hogged out the center portion with a 1/2" end mill.

After some deburring and cleanup.

I split the piece into two.

After rounding over the cut ends and a bit of assembly and I had a new U-Joint!

This was fun project and it will save an old jack from the scrap pile.
Mark

 

[raiderhillbilly]

Nice job!

 

[Ponchoguy]

Wow. Good work. I want to say that U-joint looks like a #248731 for a Walker jack. Some Sears jacks were made by Walker. They were green and I believe the model # prefix was 626 if I remember right. The 328 model prefix jacks were Japanese made Yasui units.

 

[jumpstart]

Very cool!

 

[Wayfastwhitie440]

Let's see the whole Jack please

 

[Cadillac fan]

That is some fantastic work there

 

[bonneyman]

Most excellent work!

 

[jackson1701]

Nice Job! I like the details in pictures, I love pictures!!!

 

[SweetD]

Really nice work and great save! Let's see it in action...

Dave

 

[larry4406]

Nice job. Looking at the size compared to your hand looks like you could have used a 1/2" or 3/4" swivel from a ratchet.

 

[txvwnut]

Great job. It's nice when you get to bust out on the machines and do something pourposeful and fun at the same time.

 

[sanddan]

Very nice! Did you peen the ends of the axle?

I have one of the green Craftsman jacks, should be close to 30 yr old by now and still used all of the time.

 

[Muggzy]

Makes me want a mill

Sent from my KFOT using Tapatalk

 

[Brace1]

Impressive, thumbs up!!

 

[Griff93]

Nice job. I have an old blackhawk jack I need to do the same thing to one of these days.

 

[sberry]

Good job. I have done that on occasion also with a 3/8 or 1/2 tool.