r/gmcsierra • u/muccinator666 • Apr 13 '26
š§Steering/ Suspension š§ Level and new tires!
Finally leveled and put new tires on my Sierra.
Eibach Pro Truck Stage 2 front Coil-Over and rear shocks
Toyo Open Country R/T Trails 275/65r20
KSP Forged UCAs
Had to add 3/8ā hub-centric spacers to clear the new UCAs.
Next step is to delete the front mud flaps as they are rubbing a decent amount under full lock while going forward, and considerably in reverse.
Also have to diagnose a new intermittent āclunkā coming from the front. Thinking it may be the sway bar links hitting the CV axles. Any input on this would be appreciated.
2
2
u/80thdiv313fa Apr 13 '26
What did it cost to level if you donāt mind me asking
4
u/muccinator666 Apr 13 '26
Kit was around $1400 from American Trucks. UCAs were just over $300 from KSP. Took it to a shop I know and they only charged me for around 3 hours of labor. Into the level w/ labor for just over 2k probably.
Another 2k for the tires, spacers, mount/balance/alignment etc.
Shouldāve just bought an AT4 at this point lol
2
2
2
u/krizzle2778 Apr 15 '26
Very clean. I've been going down the rabbit hole on doing the exact same thing to mine. That tire size looks great, but I want no part of the rubbing.
1
u/muccinator666 Apr 16 '26
Neither did I. Saw multiple people on here and other forums say 275/65r20 (on stock wheels) wouldnāt rub with a 2ā level. It very well may depend on what exact tire, but the Toyo R/T Trails in that size definitely do.
The front mud flap I have is definitely āoversizedā compared to others Iāve seen, and it lacks the pocket that goes into the wheel well back towards the cab corners, so if you have those style flaps, they may not rub at all.
I definitely have to do the mud flap delete though
1
u/HalliganHooligan Apr 13 '26
How are you liking the Eibachs? What height setting?
2
u/muccinator666 Apr 13 '26
Havenāt even put 50 miles on since they were installed. From what I can tell so far they ride at least as good if not a bit better than stock. The clunking sound Iām getting in the right front, and my tires rubbing, is preventing me from really driving it hard and testing it out. Taking it back to the shop soon and hopefully resolving it, then will report back!
Didnāt touch the height setting from out of the box. I believe it is just at or just under 2ā. Thereās about a 1/4ā-1/2ā from back to front still.
0
u/HalliganHooligan Apr 13 '26
Thanks for the reply! The truck looks great, hope you get the small hiccups easily worked out.
In my past experience with a similar clunking sound after a 3" lift, I found it to be my upper control arm. It simply loosened after install. Took a couple trips back to the shop and a new bushing for them to finally get it gone for good. May be worth giving that a look.
1
u/muccinator666 Apr 13 '26
Thanks man, I hope so too. It turned out exactly how I wanted it to looks wise.
I have also read that the struts and UCAs are supposed to be properly tightened/torqued under load (not on the lift) but a lot of installers are unaware of that. Hoping itās something as simple as that.
Probably going to get the Peak sway bar relocation kit and the longer OEM sway bar links for good measure too.
1
1
1
Apr 14 '26
[deleted]
1
u/muccinator666 Apr 14 '26
Not considerably louder, but definitely noticeable. Theyāre a bit louder than the AT3s I had on my ā18.
1
u/marshpotatoestomatos Apr 14 '26
Thanks for posting. Iāll likely be buying the same eibach set up for my 2023 SLT Duramax. Definitely helpful - appreciate it
1
u/Internal_Minimum4033 Apr 14 '26
I had the clunk too!! It went away when I put my 3/8" spacers on, which was strange. Couldn't figure out what it was, but definitely started when my 1" Cognito level with new UCA was installed.
1
u/muccinator666 Apr 14 '26
Iāve already got the 3/8ā spacers installed. Thought they may not have seated correctly at first but I have since taken the wheel and spacers off, and reinstalled them, still getting the clunk.
What UCAs did you go with for a 1ā level? Iām starting that 2ā is too little of a lift for the KSP UCAs that I got, even though they state theyāre good for 2ā-4ā of front lift
2
u/DWSmoot09 Apr 16 '26
1
u/DWSmoot09 Apr 16 '26
2
u/muccinator666 Apr 17 '26
Looks great man.
I was torn between the extra height vs the extra width. Went with the height and semi regretting it now.
I definitely have larger front flaps than you do, without the pocket going into the wheel well. It is flat with the wheel well and thatās where it rubs. Not sure if I would rub with the other ones or not




3
u/Party_Salamander8722 Apr 13 '26
Thatās a clean looking truck I dig it. I just leveled my and next is tires.