UCA to frame torque specs

Recently went off-roading and my UCA came detached via the nut coming loose and bolt sliding out of place

interested in finding out the torque specs for a 4x4, I almost certain it’s somewhere around 85 ft/lbs but not 100%

 

85ft/lbs is correct for 4WD

 

Wait, what..? You're saying the whole UCA came detached from the truck



Even if the nut did shear off, the bolt shouldn't be able to fall out because the bolthead is on the 'top' of the angle.

 

We need pics.

 

only thing I can imagine is nut came loose or broke and bolt came loose as I continued up a rock slope later in ride, I felt a jolt and my wheel was caved in UCA was lodged in engine bay

I don’t have any original pics of damage but bolt was In place correct head at top of angle

 

Ended up throwing the bolt back in and tightened a spare nut back so I could drive home, I just wanted to torque it correctly now that I’m home

 

So did the bolt come off because it wasn't torqued to spec, or did it shear off?

 

I are confused.. He said they put the bolt back in, so I doubt it sheared off

 

Either could have happened I imagine it broke because original torque was done by a professional but not sure, couldn’t find it

 

If you were able to thread a new nut on the bolt then the old one had to have just come loose and fallen off. *Don't assume "professionals" are torquing everything correctly either.

 

Idk man I couldn’t find original nut and bolt didn’t look damaged so yes it could have just fallen off

 

yeah, Will be doing my own work from now on

 

Lol I've heard a ton of horror stories about lazy mechanics ... including plenty regarding Toyota technicians. I'm not sure if all UCAs require it, but I got some new Icon Billet ones and they require red threadlocker ( https://amzn.to/2RwfIF3 ) to be used with the UCA install.

 

This is why you install the bolt properly from the top down and not backwards like a lot of people do

 

Just to be clear, we are talking about the super long bolt at the top, right?

 

Yes suspension bolt that attaches to the frame of truck, I understand skepticism but the bolt was installed properly with washer and nut installed at bottom of angle

my last upgraded suspension was done by a mechanic shop that I assumed did good work due to referrals but will be doing this myself

 

Have you told them what happened?

 

Yeah called them this morning, no major damage done that I can see, slight alignment difference but that could of been anything

 

Where are you getting your pictures of the FSM from? The customtaco 05 FSM page has been down. Thanks.

-J

 

Theres a thread on here with them. Torque Spec Guide or something like that