Johnny Joint Clunk / Front End Clunk

[MaximusLJR06]

No need to weld them. Could screw things up actually.

In what way? All they are doing is holding the bolt in one location since the factory slot is no longer needed, at least that’s my thought process.

The real issue I’m having is that the bmb washers are being torqued to the Johnny joint. But the original control arm bracket doesn’t seem to be receiving the same torque. So that allows the slop I’m getting, the slight shifting the bmb washers in the slot. Almost like the washers are smidge too thick.

 

[SkylinesSuck]

I'm sure it would be fine, but I remember Blaine commenting the clamping force is what holds things in place, not the bolt shoulder against the hole (same principal for washer vs mount) but I understand and would want the washer to stay still also. I was just thinking that inner surface needs to stay flat to hold the grease in better so be careful not to go crazy with the welder.

 

[MaximusLJR06]

I'm sure it would be fine, but I remember Blaine commenting the clamping force is what holds things in place, not the bolt shoulder against the hole (same principal for washer vs mount) but I understand and would want the washer to stay still also. I was just thinking that inner surface needs to stay flat to hold the grease in better so be careful not to go crazy with the welder.

I don't run greaseable bolts so no grease to hold in. This is what I think is going on. All the clamping force is between the washers and the johnny joints. and the factory CA bracket being worn down is now to thin and has no clamping force.

 

[mrblaine]

Are the black magic washers suppose to be welded in place by chance? Mine aren’t, just throwing ideas out there. I did see a post elsewhere that someone had a similar issue and they welded the Black Magic washers in place and it fixed it for them.

View attachment 542707

View attachment 542708

We weld them all the time. Your problem is that the oval that sticks into the slot is taller than the thickness of the mount side plate. You should sand or grind that lower until you can get clamping force on the sides of the mount instead of just the washer. That was also pointed out in the instructions.

 

[mrblaine]

Almost like the washers are smidge too thick.

No, the inside of the mount is worn from the ends of a joint moving around.

 

[mrblaine]

I don't run greaseable bolts so no grease to hold in. This is what I think is going on. All the clamping force is between the washers and the johnny joints. and the factory CA bracket being worn down is now to thin and has no clamping force.

View attachment 542863

View attachment 542864

Correct.

 

[MaximusLJR06]

Correct.

Just so I'm clear on this, the proper fix would be to weld the washers in place and then remove the control arm and grind the inside of the bracket so that the washer and bracket are flush?

 

[Rickyd]

9 months later it turns out that following the instructions could be a good idea...

 

[mrblaine]

Just so I'm clear on this, the proper fix would be to weld the washers in place and then remove the control arm and grind the inside of the bracket so that the washer and bracket are flush?

You don't have to weld, just make sure that the raised oval is slightly below flush at the inside face of the slot. The proper fix is to remove the control arm mounts and weld on a set of the ones from Iron Rock Offroad and keep the bolts tight this time.

 

[MaximusLJR06]

9 months later it turns out that following the instructions could be a good idea...

I never knew there were instructions for them lol