Help w/ rub after leveling kit and bigger tires

[Hurlz07Tahoe]

I installed the Rancho Quicklift (2.5" in front and 1" coil spacer in rear) with 305/55/20 Procomp Xtreme ATs. I had a shop do some trimming in the front and I did some trimming of the plastic wheel well liners in the back. I have no rubbing when it's just me in the truck. However, when I had my 200lb dog in the back and 4 more people in the truck I noticed some rubbing even during flat road during turning. It definitely gets more intense when I go over bumps.

Does anyone have any tips on how I can safely check for where it is rubbing in my driveway with a floor jack? I'm a little cautious lifting the truck under one tire at a time and somehow loading the truck with enough weight to get the travel I would need to find the rubbing...

Thanks!

 

[Max]

Where is the rubbing once the truck is loaded? Front or rear? I'd find a home depot or some other industrial park with angled ramps for their loading dock and use them to flex one individual corner of the truck at a time to see where it is rubbing



Then you can tell where the rubbage is coming from and further address the issue. I'd imagine the rubbing occurs on the rear inner fender liners due to the wheel offset and wider tires, at any rate they are easily trimmed. For the front I've used a thick cloth in conjunction with a big ass rubber mallet to massage the rear fender at the bottom closer to the firewall. Best of luck.

---------- Post added at 12:20 PM ---------- Previous post was at 12:18 PM ----------

Right where the tire is kissing is the part you want to tap with the mallet, this truck was fine after I hit it a few times

 

[MOBmentality]

The real question is WTF does someone do with a 200lb dog?!?!?!?

lol

NIce rig.. another way you can do it is grease paint.. buy some white face paint (grease) from a costume shop.. or a lithium grease from your parts store and smear it on any spot where you think its rubbing.. make a slow trip around the block and come back and check your handiwork ..

 

[Zed 71]

Wow 305s are really wide for the NNBS. Can you post pics of how they fit and the trimming done so far? How much does the rear end squat when you have that much weight? Also, are those stock 20s?

My dog was 240 lbs and with camping gear, the rear end got very low (not good offroad). So I installed Airlift 1000 air bags and that solved it.

Max, which size are those Procomps and the wheel? I really wanted the Xtreme ATs, but they didn't have a good size for the stock 18s.

 

[Hurlz07Tahoe]

Grease paint is a good idea and so is a loading dock ramp.

There is only slight rubbing. I had the shop who installed the tires do some trimming in the front (plastic lining and a little bit of metal). I trimmed the rear plastic fender liners, but maybe I didn't trim them enough. It's only a slight amount of rub even with the 500+ load in the back. I'm just more concerned when I have the same load, plus I'm pulling the boat around this summer...

Attached are pictures of after the trimming I have done so far. These are stock 20in wheels with 305/55/20 Procomp Xtreme ATs. By the way, the tires are great! They handle the highway and city driving, great in the rain and through standing water, great in the snow, next step is the beach! Plus they are the only tires with a 40k miles treat wear warranty, which is nice.

 

[fco_gonzo]

I had the same problem at frist but I took a razor to the inner plastic and did some trimming. No more rubbing.

If you still have some rubbbing I suggest you turn the wheels to a full lock watch where they rub and then do some trimming repeat on other side. Good Luck!