calgator73

Thanks again man. I haven't had an issue since the local shop torqued everything down but it's def on my radar. I made an assumption that torque angle = torque angle yield and with the info from gm parts direct went down a rabbit hole. Really appreciate it.

I really appreciate the response. I guess I was confused about torque angle vs torque angle yield. The individual bolts don't have a warning on reuse but the part number for the LCA nuts does. Regarding the purpose of the moog grease fittings on their bolts .. Guessing to reduce possibility of corrosion locking the cams or seizing to the bushing inserts.

I appreciate that. I'm waiting on a call from Moog because I'm sorting through some conflicting info. The OE bolts are as the link provided (Thank you for that) But apparently the Moog parts are not TTY. Don't want to under/over torque these.

About 8 months after an alignment job by the dealer I started experiencing a pretty significant clunk in the front end on hard left hand turns usually parking lot speeds almost at lock. Occasionally get the same on hard rights too. Discovered that the lower control arm attachment bolts are TTY and only to be used for a single use. And then I found some evidence of a TSB that indicates you can over torque those fasteners to about 130 foot pounds. Asked a local shop to investigate and they found 3 out of four bolts loose and retorqued. I've ordered the MOOG K100421 lower control arm bolt kit that is completely reusable and not TTY. Is the 80 ft pounds a realistic number? Anyone have experience with those bolts?

Don't trust the gauge... Use a scanner with live data to get an accurate read on remaining fuel. Also check this: https://gmauthority.com/blog/2025/06/gm-keeps-you-guessing-on-empty-unless-you-know-this-trick/

Took a little roadtrip from Nashville back into Virginia...

Any UCA issues?

While investigating possible causes for my suspension popping/clunking noises I came across something interesting. GM does not list a specific unique UCA or end link for the 2020 AT4. (see 85660607/85660606 for UCAs and 84367821 for end links for all sierra 4wd) GM does however list unique parts for the 2022. (see 85660608/85660609 for UCAs and 85590925 for end links) The end links for the 2024+ are about 2" longer. Knuckles are the same. Background my truck is an AT4 and I installed the AT4X GM Accessories suspension package. That package was limited to springs and shocks. Same ride height more wheel travel. My understanding was that the AT4/AT4X called for specific UCAs and end links to compensate for the 2 inch lift. What changes were made to the trucks to require new UCAs for trucks with 2" lift?

That sucks

Truly sad. There were some news reports years ago after the 1998 flood (if memory serves) that talks about areas out there being uninsurable due to the flood risk and how county officials would work through the state reps in congress to undo that. I truly hope these lessons are learned as numbers of deaths from these events now exceeds 1k. No excuse given the history of that river system.

https://www.aev-conversions.com/product/aev-35-tire-clearance-kit-gmc-sierra-1500-at4x-aev-edition/

Put the X suspension on the at4.

I purchased this: https://accessories.gmc.com/product/60-inch-blade-led-tailgate-light-bar-by-putco®-associated-accessories-19418352?bac=117063&body=Crew Cab Pickup&bodyId=22&bodyNumDoors=5&bodyNumDoorsId=5&drive=4WD&driveId=8&engine=6.2L V8 GAS&engineId=5920&make=GMC&makeId=48&model=Sierra 1500&modelId=548&trim=AT4&trimId=5102&wheel=Short Box&wheelId=651&year=2024 Just be careful where the control box is mounted and of course don't use the stickers. mount it to the bed with screws.

Good to know.

Looks like the 2025 GM trucks and SUVs equipped with the 6.2 can now get the cold air intake that they discontinued I think in 2021.