What have you done to your Silverado ZR2 this week? 🛠️

[COWAN8]

Installed the Cognito Ball Joint Upper Control Arms and Peak leveling kit. As @Stevebag383 had started about a similar setup, it’s dead level now.

I chose this Cognito UCA kit because I plan on running the stock wheels and tires for a bit; and Cognito does not recommend their other UCA kits with stock wheels and tires.

Very happy with the results.
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Hey, about to go down this road with the exact setup. Did you have any issues or see anything that I should steer me in another direction? I only want to replace the UCA's and possibly level. Was there any fitment issues?

 

[mr1175]

I have Peak Summit? I think it was called with the tube style UCA not the super expensive aluminum (you have to call/email them for that option) with the 1" block rear. I have an issue with peak on the u bolts for the rear being square, they say no problem but factory is U shaped so I went to the local suspension shop and had them bend some U shaped like OEM and replaced but that was the only issue. Went with 285/75 18 Ridge Grapplers on stock ZR2 wheels and the Bora 3/8" spacers and scovel lug nuts so I dont have to change any of the factory parts on the hubs and I still had minor rubbing on the fender flare in reverse only.

 

[Graidian]

Got the support bracket made and painted. I should be adding the pods to the bumper this weekend.

 

[The_Q]

I have Peak Summit? I think it was called with the tube style UCA not the super expensive aluminum (you have to call/email them for that option) with the 1" block rear. I have an issue with peak on the u bolts for the rear being square, they say no problem but factory is U shaped so I went to the local suspension shop and had them bend some U shaped like OEM and replaced but that was the only issue. Went with 285/75 18 Ridge Grapplers on stock ZR2 wheels and the Bora 3/8" spacers and scovel lug nuts so I dont have to change any of the factory parts on the hubs and I still had minor rubbing on the fender flare in reverse only.

@AXE has a thread on trimming the rear portion of the fender plastic and creating more room to eliminate the rubbing. I followed his thread and went just a few steps further when I added my 285/75 18 Duratrac RTs on the stock wheels with 1/2" spacer. Peak suspension also suggested negative caster when using aftermarket upper control arms. The picture is of my current alignment set up as suggested by Peak.

 

[OC ZR2]

Finally ordered the new suspension. Coming in a few weeks. Peak kit 2.5 trail. See how it works out

 

[john242]

Hello,
Any hood scoop wraps for zr2 2026 with Duramax 3.0? thanks

 

[Govols83]

Working on a little project

 

[wurgs]

Put the B pillar covers on today. Love the way they look but wish they had a piece for the back piece of the rear doors. It looks a little weird with them being the only matte black door trim.

 

[Byrds8]

Greased the front end yesterday. I hate doing the center three. Almost couldnt get the hose off the idler arm. It just did not want to let go. The driver's side LCA wouldnt take grease. They just replaced that one not too long ago because they thought it was causing my squeak too. A damn shame. At least Im good for a while though.

 

[OC ZR2]

Back in country, Peak trail kit came in and installing tomorrow. Wish me luck!

 

[OC ZR2]

All done, install went pretty easy. Took about 4 hours and the guy at Peak I've been talking to told me the kit ships with the front coils preloaded at 1.25". He said it takes 10 full turns to get the 2.25" so that's what I did. I measured prior to the change and I had 9 3/8" from top of front tire to center of fender flare. I used a spring compressor to help when we turned the collars the 10 full turns. If not you'll be fighting it all the way. After the install, it was about 11 1/4" at the same measurement. I'll need to drop it down a few turns, it sits just above level in the front. I'll take pics tomorrow in the daylight but I took some install pics along the way. I set them around 2's for high and low speed compression for all 4 shocks. After driving it home, I'll bump up the high speed setting to 3 front and rear. It was a bit soft on higher speed freeway curves with dips. Also added the tie rod sleeves as well and will need to align tomorrow. Pretty happy, nice quality and great service from the techs at Peak.

 

[MNNJR69]

All done, install went pretty easy. Took about 4 hours and the guy at Peak I've been talking to told me the kit ships with the front coils preloaded at 1.25". He said it takes 10 full turns to get the 2.25" so that's what I did. I measured prior to the change and I had 9 3/8" from top of front tire to center of fender flare. I used a spring compressor to help when we turned the collars the 10 full turns. If not you'll be fighting it all the way. After the install, it was about 11 1/4" at the same measurement. I'll need to drop it down a few turns, it sits just above level in the front. I'll take pics tomorrow in the daylight but I took some install pics along the way. I set them around 2's for high and low speed compression for all 4 shocks. After driving it home, I'll bump up the high speed setting to 3 front and rear. It was a bit soft on higher speed freeway curves with dips. Also added the tie rod sleeves as well and will need to align tomorrow. Pretty happy, nice quality and great service from the techs at Peak.View attachment 28372
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Nice

 

[OC ZR2]

Added note, you do have to grind a small bit off the right rear upper shock mount flange. The top edge of the shock comes in contact with it but it doesn't take much, maybe 1/8" off. Quality is nice on these, I'm sure Fox and others are good too. I like what Peak said on a post I was reading. Someone had said why Peak instead of Fox or King? He said, why not? I'm pleased with the quality and communication of Peak, was a local company here in SoCal until they moved to Idaho, I get it!

 

[OC ZR2]

Side pics and measurements