Trying to run my previous wheels on NNBS

carson1919 · April 2, 2016

Hello,

I recently bought a 2011 chevy Silverado 1500 ltz. I had 20x10 -12 offset wheels (5 in backspacing) with 33x12.5x20 toyo open country M/T and would like to run these on my current truck with the Z71 package. After doing some research it looks like it my be a little bit of a challenge. I plan on doing a 3.5 rcx lift once my warranty is up but until then what is the smallest and cheapest level/lift I can run until i can gather funds for the 3.5 lift. I know I may have to trim or do the north cal mod but any help would be great. Thank you!

From what I gathered- possible 2' rcx spacer with lots of trimming

2.5' with less trimming?

I am unsure if the offset is going to make this possible but would love to hear what you guys think!

efritz · April 3, 2016

do not run the 3.5 rough country, it is trash... Suspension geometry goes all to hell. Get a real lift where you get new spindles and the front diff drops and gets braced, like a 4 inch plus. Then you can happily run your tires!

dirtfan21 · April 3, 2016

2" level and 1.5" zone body lift. I ran this setup on my previous '07 and liked it. You can barely tell it had a BL.

carson1919 · April 3, 2016

After some other comments on different threads I am choosing to run a 2.5' level and a 1.25'' BL.

BlackZ71Silverado · April 3, 2016

After the body lift and front lift spacer, you should be fine. The suspension package on the truck does not matter, the measurements are the same across the board for the Silverado/Sierra.

carson1919 · April 5, 2016

Thank you for the replies. I think I may need to do a little trimming but other than that it sounds like I will be able to run them. I am installing the level and BL this Sunday so ill let you all know how it goes!

carson1919 · April 5, 2016

And as far as the same suspension, I know the Z71 package comes with different rear suspension. I read somewhere that the rear block was also larger but I no longer think that holds true.

carson1919 · April 11, 2016

image.jpeg Well after a full day of wrenching, the 2.5" rcx level and the 1.25" body lift is installed. Fender measurement at all at 41 1/4" inch

dirtfan21 · April 13, 2016

Looks great, how do they fit?

carson1919 · April 14, 2016

After quite a bit of trimming they fit with no running. I did the small nor cal and then had to do the large nor cal to make them fit. The wheels are just so wide and the offset killed me.

dirtfan21 · April 14, 2016

I wondered if you would still have to go the Nor Cal route. That is a heck of a wheel and tire combo to fit under a 3.5" lift, but it sure does look good.

carson1919 · April 15, 2016

Haha thank you. We actually called our fender modding the wisco fender mod because we had to cut some in order for it to work. Then we hammered the lip up like the nor cal mod. Haha. I think the beer and the lack of energy was setting in at that point...