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Discussion Starter · #1 ·
I have an 06 3500 quad cab short box that I currently have a 2"(I think) leveling kit, 35x12.50r17 toyo mts on 17x8.5" wheels with a +15 off set. I have a canopy and feel it barely has any rake to it empty and then loaded down it looks like its sagging, then add the car trailer and it definetly is low in the rear. I am looking at replacing the tires with toyo ATIIs in a 285/75r18 size as I think the 18" wheels will look better and they will be narrower and over 12 lbs lighter each tire which seems like a good option while keeping the same diameter.

Is there a 1" leveling kit out there? I have considered a rear 1" lift but think if I could lower the front an inch I would be doing the same thing cheaper and with better handling etc. then that leads me to think that maybe stepping down to a 285/75r17 would also be an option with less fender gap on the front if the flares didn't make them look too small.

Picture attached is my truck parked totally empty.

I have been running the current set up for 4-5 years and get ok mileage but an improvement would be nice if it doesn't look too goofy with the fender flares which I am stuck with. With the current online sales buying wheel/tire combo is cheaper than just the tires locally so good excuse to get some new wheels. The current +15 off set seems about as high as I would like but going with an almost 2" narrower tire leads me to think that I could get away with even maybe a 0mm offset but don't have any experience with these trucks to know.

Looking for options and/or opinions about which direction to go.
 

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You could put airbags on the rear.

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I put a set of Supersprings (I think that's the brand) on my truck some years ago. They added about 2" to the height of the rear with minimal effect on ride quality. They are offered in 2 versions, I got the heaviest ones with two leaves instead of one. I tried the air bags, but they were like riding on a pogo stick, and returned them for a refund. With the Supersprings and 18,000 lbs. on the gooseneck, the factory overload springs rarely touch the saddles.
 

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Go with the Thuren adjustable rear shackles. I just installed them on my truck this week. Only took about an hour and a half to do both sides. They were relatively inexpensive and they leveled my truck out perfectly. I installed a Carli leveling kit about a year ago, and the front always sat higher than the rear by about an inch and a half. I kept waiting on the front springs to settle some but it never really happened.
 

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Discussion Starter · #6 ·
I had been looking at the KORE 1" rear kit but these shackles might be an option as well for less I am assuming. Air bags are a last resort as I run empty to full with w/out car trailer w/ w/o a car all in a day sometimes.. I have hard enough time keeping up with the brake controller. I want to just hook up and go for the most part and ride decent while unloaded.
 

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The Thuren lift shackles look like the way to go. They are cheaper than the Supersprings and either one seems like an easy install. But in my case, I needed more load carrying capacity.
 

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The Thuren lift shackles look like the way to go. They are cheaper than the Supersprings and either one seems like an easy install. But in my case, I needed more load carrying capacity.
The only way you are going to get carrying capacity is to get a bigger truck. Airbags, AAL etc, allow for carrying management.


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