Cracked front upper control arm mounts

[mountainbiker42]

Anyone ever see a cracked front upper control mount? I’ve never had those upper conntrol arm bolts out but it seems like it’s one long bolt inside a solid sleeve that runs inside the spring perch. If so, I don’t think where this crack is located will really do any damage. I can’t imagine it coming it apart as long as that bolt runs all the way through both mounts. The broken piece seems to be acting much like a spacer and does not move with the suspension. Both front mounts are cracked on my 4runner.

Has anyone seen this?

 

[octanejunkie]

Eh, what could happen?

 

[Plastics guy]

Looks like you had fun.:lookout:

 

[mountainbiker42]

Hey who hasn’t jumped their toyota just a little bit? Haha. Idk how long it’s been like that. Probably a while. I do off road trails and do some rock climbing but I’m not too mean to it.

 

[NWFL4Runner]

I’d pull the bolt and arm and weld it. You don’t want an UCA shimmy. Get UCA gussets while you’ve got everything apart. I use Solo’s but Total Chaos sells them too. Some easy insurance.

 

[mountainbiker42]

I’d pull the bolt and arm and weld it. You don’t want an UCA shimmy. Get UCA gussets while you’ve got everything apart. I use Solo’s but Total Chaos sells them too. Some easy insurance.

Yeah I could certainly weld that back together. Thanks for the tip on the gussets.

What are the symptoms of an upper control arm shimmy?

 

[NWFL4Runner]

Yeah I could certainly weld that back together. Thanks for the tip on the gussets.

What are the symptoms of an upper control arm shimmy?

I was talking if those welds were completely cracked all around then you’d have an UCA bolt moving horizontally, shaking and wobbling around. Is the UCA bolt still torqued tight? (87 I think??)

 

[mountainbiker42]

I was talking if those welds were completely cracked all around then you’d have an UCA bolt moving horizontally, shaking and wobbling around. Is the UCA bolt still torqued tight? (87 I think??)

Got ya. I’m not sure if they’re still tight. I’ll have to check. They don’t appear to be loose.