Mark, couldn't we all use more pipe!

Put the struts in your trunk and take them to a shop. They will have a "large and professional" air gun to use on the nuts. It will cost you a few bucks but they will be off in seconds! (They may not even charge you!)

You could attach a steel plate to the bench top with through bolts. It could be drilled to match the 4 bolt stub axle pattern. Drop the assembly on top of this and wrench away. The hammering of the impact is what aids in the nut removal. If you don't remove the nut peening the stub axle will likely be ruined and the 280Z stubs are favored for strength and getting harder to come by. Take the time to prep the nut and it will be easier.

Luke, I'm your father!

Might I suggest heating up the nut with a torch then trying your impact gun again. I have used this trick on many a stuck nut.

Much luck to you,

Chris

I wonder if they sell Jedi breaker bars...

The torch idea is easy to try. I used heat to get the tie rod nuts loose on the front end a month ago. Maybe cutting the peening off, heating up the nuts and using the good old dime store air gun will do it...if not, nothing lost! I shall try that first before setting up a "torque station" on my bench.

Mark, couldn't we all use more pipe!

Well said!

Put the struts in your trunk and take them to a shop. They will have a "large and professional" air gun to use on the nuts. It will cost you a few bucks but they will be off in seconds! (They may not even charge you!)

If I don't get them apart tonight, that will be Thursday's answer. I just can't help myself - I have to try!

grab the pipe harder to bust the nut!

Call your local equipment rental place. I rented a 3/4" impact gun about a year ago. Only cost $15 IIRC, then I bought a 3/4 to 1/2 adapter. The adapter was more expensive than the rental. Similar situation, my impact wouldn't take off the crank pulley bolt of an engine I was working on.

Can you post a pic or the part you're removing? I'm about at the same spot and wonder if I just made the same mistake (it's been a few days since i've worked on this and intend to finish the tear down of all the remaining rear suspension bits Fri night...

I immobilized the strut assy using a short piece of 2"x10" cutout for the 4-lug mount, secured with lug nuts and attached 8' long 2"x4" to same. On other end used 1/2" breaker bar with 6' long pipe over same for leverage. Get somebody to stand on 2x4 and then jolt the pipe with arm power. Comes loose right away.

Can you post a pic or the part you're removing? I'm about at the same spot and wonder if I just made the same mistake (it's been a few days since i've worked on this and intend to finish the tear down of all the remaining rear suspension bits Fri night...

Larry, I drew an arrow to the location of the nut we're discussing.

Chris

Chris has pointed out where the nut is, and here are a couple of close-ups for fun! The first is at an angle so you can see the "peening", and the second is from above so you can see how it is crimped to the flats nicely.