Wheels to clear Icon upper control arms

Cabinetman · April 12, 2016

A few weeks back I installed an Icon stage 2 kit on my '15 Sierra CC 4x4. I was hoping to to be able to stick with my stock wheels and run 275/60-20 Terra Grappler G2s. However, I'm having rubbing issues with this set up. Initially both the tire and clamped on wheel weight were hitting the Icon control arm on the driver's side so I switched to adhesive wheel weights and now just the tires rubs at full lock on both sides.

I'm going to play with the alignment a little to see if I can make the factory wheels work, but if not I will need to find some new 20" wheels for my truck. With the research I have done it looks like a 0 offset should clear no problem. My only concern with a 0 offset is the tires sticking out past the fender. I'm not sure if a +18 or +20 offset would give me enough extra clearance to work as I'm not exactly sure how much different these offsets are from stock. I feel like if I could push the wheels out about 1" per side I should get plenty of clearance on the new control arms.

Can someone give me guidance on what offset I should be looking for to give more clearance for the control arm without pushing the tire too far out? I don't want to spray the whole side of my truck every time I drive through a puddle. I would also be interested in wheel suggestions that are high quality and fairly conservative in style. I will likely go with black wheels if I go aftermarket.

CptMcSaug · April 12, 2016

According to the manufacturer the wheels can be 17" but need to have a max of 5" backspace. I can't recall the factory backspacing. But you could probably get some spacers and be fine.

Cabinetman · April 13, 2016

According to the manufacturer the wheels can be 17" but need to have a max of 5" backspace. I can't recall the factory backspacing. But you could probably get some spacers and be fine.

I'm not really interested in running spacers. I think I will try a 20x9 wheel with +18 backspacing and see if that will give me the extra clearance I need unless I can adjust the alignment enough to clear the OEM wheels. I only rub at full lock so I don't need much. I want to stick with a 20" wheel since I already have new 275/60-20s on the truck at this moment.

Kander41 · April 13, 2016

It's hard to imagine that they would engineer an upper control arms that wouldn't fit with the factory wheels.....but who am i.

On a different note, how does their coil overs ride compared with stock? I would be interested in a comparison of icon and Fox since they are so similar. Either looks like a nice upgrade from the Ranchos.

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Cabinetman · April 15, 2016

It's hard to imagine that they would engineer an upper control arms that wouldn't fit with the factory wheels.....but who am i.

On a different note, how does their coil overs ride compared with stock? I would be interested in a comparison of icon and Fox since they are so similar. Either looks like a nice upgrade from the Ranchos.

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I agree regarding the engineering. According to Icon their upper control arm will the clear the factory wheel AND tire combo, but if you upsize the tires all bets are off. I went from the 275/55 stock size to a 275/60 and it rubs a little.

The coil overs ride good, but they are not a lot softer than the stock Z71 shocks. On small bumps you really don't notice a big difference. On the bigger stuff is where the digressive valved shocks show their stuff. Big hits that used to jar the whole truck now get absorbed well. The truck still stays pretty flat through corners and brake dive is only a little more than stock. Basically, if you want a ride that is just a little softer than stock and still gives you stock handling then the Icons are a good option.

Kander41 · April 20, 2016

I agree regarding the engineering. According to Icon their upper control arm will the clear the factory wheel AND tire combo, but if you upsize the tires all bets are off. I went from the 275/55 stock size to a 275/60 and it rubs a little.

The coil overs ride good, but they are not a lot softer than the stock Z71 shocks. On small bumps you really don't notice a big difference. On the bigger stuff is where the digressive valved shocks show their stuff. Big hits that used to jar the whole truck now get absorbed well. The truck still stays pretty flat through corners and brake dive is only a little more than stock. Basically, if you want a ride that is just a little softer than stock and still gives you stock handling then the Icons are a good option.

Thank you for the feedback. I am running 275/65 r20s with my level currently. One day will upgrade the upper control arms and shocks. Was hoping that the coil overs were heads above stock ride quality but at least they control tire movement better. Cognito and Fox are probably the more common setup so it is nice to see someone run Icon.

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