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I stopped at my local GM dealer today to try and find the above torque specs. Unfortunately the technician couldn't find front cross-member or diff mount torque specs. However, he printed me off GM's in house leaf spring replacement guide which confirms the factory u-bolt specs. Don't think I can post the GM guide due to copyright, but it's written like this (4 steps/passes): (tighten in cross pattern) 1) first pass: torque to (80Y) 59 lb-ft 2) second pass: loosen 180 degrees 3) third pass: torque to (80Y) 59 lb-ft 4) final pass: 120-140 degrees I found a post from 2017 on another site claiming the diff mount torque specs, but I'm not sure how accurate this is, can anyone confirm one way or another? "Differential Carrier Assembly Mounting Bracket to Frame Bolts:" -160 n*m or 118 ft-lbs Also still looking for front cross-member torque spec for a '14-19. Found a post talking about a 2011 Sierra, that person's Chilton manual is claiming 2 torque specs: 37 lb-ft + 120 degrees, or 74 lb-ft. That person ended up torquing to 74 lb-ft. Any ideas? Thanks, Alex edit: found the motherload of torque specs for a 14-18 Sierra listed here Front differential carrier assembly mounting bolts and nuts: 74 lb-ft Front differential carrier bracket to Frame nuts: 74 lb-ft

My shock came in the other day, it went on a hell of a trip by itself around through the provinces and back lol. Feels nice 'n beefy, and looks quality too. Psyched to be installing them this Saturday. I'm still looking for the following torque specs if anyone has been able to find them: -front cross member -front and rear diff mount bolts -u-bolts -tie rod end where it meets the knuckle Cheers Alex

Hello everyone, I am new-ish to the forum and this is my first post. I own a 2015 Silverado 1500 LT, and will be lifting/leveling it this weekend if everything goes to plan. Here's a fresh pic; she needs a good clean. I purchased this 3.5" Lift/level kit by Rough Country (brought in by a local vendor), just waiting on 1 Vertex Coilover that got separated in shipping before I can install. Edit: looks like I'll be waiting 'til next weekend for this install, shock is still missing in transit The kit includes: -Vertex Reservoir Coilovers (front) -V2 Monotube Shocks (Rear) -Forged Upper Control Arms -front & rear diff drop spacers -new front diff skid plate -new rear blocks Included hardware (and all the needed washers+lock washers for the following): -6x upper shock bolt (vertex coilover): 17 head, 1-3/16" long, approx 10mm diameter (bolts directly into top of shock) -4x lower shock bolt (vertex coilover): 8mm Allen, 2-5/8" long, approx 10mm diameter (stamped with "12.9" on the allen head end)' -2x split sleeve->install in knuckle to fit UCA -2x nylock nuts for upper ball joint -4x u-bolt: diameter ~0.536", at the threads: ~0.565" -4x u-bolt nylock nut: 7/8" -4x diff drop bolts: 5/8" head, 4-3/8" long, 10.88mm diameter (gold colored, 6 lines stamped on head) -4x diff drop nut: 11/16" ---- 4x other bolts/nuts + their needed washers, not sure where they go. Was thinking replacement rear strut bolts or UCA bolts, but the instructions say to re-use hardware for both... -4x bolts : 17 head, 2-5/8" long, grade 8.8, 10mm diameter -4x nylock nut: 17 ^*If I'm missing something for these last 4 bolts please let me know. If there was a strut spacer being used, they could be for that... but the Vertex shocks are all one piece and seem to have been raised without need for a spacer. Also looks like it would be 3 bolts/spacer, so I'd be short 2 bolts anyway. What are these for, any advice? Very excited for this performance/visual upgrade, my Ranchos have seen better days to say the least lol. It's been tough finding all the info needed, but this is what I've got so far. Will need to reference these multiple sources throughout my install. Main/full install (not specific to the Vertex Shocks or the UCA from the kit): https://s3.amazonaws.com/roughcountry/install/921194000.pdf UCA specific install: https://s3.amazonaws.com/roughcountry/install/92119401A.pdf Vertex Shocks install: https://s3.amazonaws.com/roughcountry/install/921689001.pdf Rough Country video showing full install (different shocks/uca): https://www.youtube.com/watch?v=ZJplmfRy90A I am looking for some torque specs that will be needed for this install, and I have a few other general questions about the job. I added the specs of the included hardware in case I should be using the torque specs listed on the instructions sheet for those? It's not very clear and the sizes don't match up to the torque specs listed, but I might just be misunderstanding something. I'm assuming all re-used/factory hardware will be re-installed to factory torque spec. After a lot of digging I've found many of the torque specs needed, namely: -wheels: 140 ft.lbs -rear upper & lower shocks: 85 ft.lbs -rear u-bolts: 59 ft.lbs, 130 degrees OR 74 ft.lbs? conflicting info online. -front upper & lower struts: 37 ft.lbs -upper ball joint nut: 37 ft.lbs, 90-110degrees -steering linkage nut: 26 ft.lbs, 85-105degrees -sway bar nut: 17 ft.lbs -sway bar bracket: 37 ft.lbs -upper control arm bolt/cam/nut: 140 ft.lbs if both cams are separate from bolt, 77 ft.lbs if bolt is attached to one of the cams. -upper ball joint: 50 ft.lbs as per the Nylock nut torque spec in install guide. 37 ft.lbs seems to be normal otherwise? ^*if you have a different value for the above components, please advise. Torque specs I am still looking for: -front cross-member (needs bit of cutting and re-install) -front and rear diff mount bolts (for diff drop) -skid plate - is a torque spec necessary for this? doesn't look like the original skid plate will be going back on, but if I can modify it and make it fit with the new skid plate then I will -Clarification: rear u-bolts. 59ft.lbs+130deg. or 74 ft.lbs? or something else entirely? New hardware and no torque specs listed that I can see for these u-bolts/nuts -Clarification: tie rod end where it meets the knuckle - is this the same as "steering linkage nut" listed above? If not, what torque spec for this guy? -Clarification: brake line bracket bolted to UCA - is there a torque spec for this or not relevant? Other questions: -the instructions say multiple times to be careful about over greasing. How do I know I'm there without over-doing it? Been a long time since I've worked with a grease gun lol. Am I looking for the point at which grease starts to come back out the nipple (stop adding grease at this point)? -should I be using thread locker or anything to address the threads for each component? -If anyone is running these Vertex shocks on these trucks, how has your experience been with them over time? Have heard a lot of great things which prompted me to go with this kit over a Fox 2.0 level, should be a pretty big difference from my struggling Ranchos. This is my first truck (as of late 2021), and this will be my first 'big' modification to any vehicle I've owned. I have always done my own maintenance work on previous cars (fluid changes, brakes, starters, etc.), so I'm fairly mechanically competent, but I would appreciate any advice and general tips/tricks for any part of the install that you have to give. Thank you for your help. Alex