double047

iTrader: (15)

I have searched high and low for 3 weeks for a definitive answer to this question...not just on PT.NET, but other sites and Google as well...I'm sure the answer is out there and I just missed it.

I want to run 305/50R20 Kumho Ecsta STX on my 2010 NNBS that is stock height in front with a 3" drop in the rear using the stock 8.5" rims?

I know that the tires overall diameter is virtually the same at 32.00" vs. the 31.90", but what I am concerned about is the width rubbing up front.

I need to find out ASAP because I want to have them installed this week.

***Another option I have thought about is running 275/55R20s up front and 305/50R20s in the rear***


-kb

Three6GMC

iTrader: (11)

IM running the 305/50/20 nitto nt420s on my truck with no problem i have the stock ride in front with just the blocks taken out in the back and i dont get any rubbing issues

double047

iTrader: (15)

Wow, thanks a lot that really looks good.

Is your truck 4x4?

Also it looks like your truck sets pretty level with just the blocks removed, on my 2010 2WD I put on Beltech 2" Shackles in the back and it still had a little rake to it so I had to lower it another 1" to level it completely.


-kb

Three6GMC

iTrader: (11)

thanks my truck is 2wd and yeah it sits pretty level for just taking out the lift blocks idk iv noticed other trucks still sitting alot taller then mine with the same mod it still has a slight rake but not to bad im gunna end up putting some 2 inch drop shackles on it 2 eventually to get it completely level

double047

iTrader: (15)

And those are your stock 20x8.5 rims also right, sorry just making sure before I spend $1000 on new rubber...

Again, your truck really good!!!

Three6GMC

iTrader: (11)

lol yeah there the factory wheels my truck came with and yeah know what you mean hell when i put mine on when i first got my truck i didnt see anyone running this size so it was a big guess for me but $1000 later they fit pretty good lol..........

double047

iTrader: (15)

Well man I can't thank you enough, hopefully I can get them installed tomorrow!

I see in your sig where you have the 3.73 gears tru trac rear end, did it come with the 3.73s or did you have them installed?

Also would you go any lower like a 4.10 with the 6 speed?

Mine has the 6 speed and 3.42s and I have been asking around to see what I should do about the rear end and gear setup.

Three6GMC

iTrader: (11)

nah my truck came like yours with 3.42's i put the 3.73's....and i wouldnt really go any lower in our 6 speeds, running 3.73's is like running 4.56's in the 4 speeds or so i heard. My gears feel really good i dont plan on changing them i think any lower and my first gear would suffer also my tuner doesn't recommend anything higher, i like to take my truck to the track and i think i go through first fast enough. I went with my setup because i destroyed my factory G80 rear end so when you can replace yours i broke mine when i was tune only on the 420s and on the street....

double047

iTrader: (15)

Edited...I didn't read clearly enough, lol...

So can you PM me the information on the rear end?

Thanks again for your help.


-kb

Bow-Tie-Beast

Dont know if its too late but I have 275s on mine and it rubs but mine are 55s, a 4x4 and a 2500. I have been considering 50s as well, so let me know howit goes.