2020 Sierra Lift Problems "NON AT4"

cnola46 · September 5, 2020

So I have a 2020 Sierra 1500 SLT, I did the 3 1/2" Rough Country Suspension Lift and was going with a Toyo M/T 295/65R20. Could not turn to save my life! Added a 2" leveling kit to lift which now made it 5 1/2" in the front and 3 1/2" in rear went down to a 295/60R20 and STILL it scrubs in the rear section the the front fenders. I'm at a loss for words. I have see others with just 4" lift with same tires and no scrubbing. HELP is all I can say and ask for!

amxguy1970 · September 5, 2020

This is why I would never buy a used truck, that front end is just screaming... I guess you could stack another leveling kit on there and see if that helps? Not sure what to tell you, make sure it is properly aligned and maybe some trimming will be needed? Many people have to trim or tie back parts to clear big wide tires; research goes a long way.

Tyler

cNate · September 6, 2020

I recommend pulling all that off and going with a quality product, like the BDS kit. There’s a reason they warranty their parts for life and give you a 5 year 100k mike power train warranty in the event GM doesn’t honor a warranty claim and can prove the lift was at fault. Then use the tire sizes they recommend. I’ve had highly customized trucks in the past and it’s important to do things right for durability, quality, and safety. The problem is as soon as you tweak something, then you’ve got to correct for it, e.g. my last truck had a 6” lift on 35s.. to do that right I had to replace more than just the suspension to bring everything back in harmony. Tuned the truck, put 4.10 OEM gears, AMP steps to climb up in it, super spring because lifted trucks don’t tow great, breaks because tires we 4” taller and 40lbs heavier, etc, etc.. next thing you know $10k+ spent.

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