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Post your T1 wheel/tire setup


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On 7/15/2019 at 3:09 AM, GJM32387 said:

Fuel Rebel 20x10 -18 Offset
No spacers
Nitto Ridge Grappler 295/55/20
Factory Trailboss Suspension
Slight Rub on mudflap on full lock.

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Could you show pictures from back or front to see how wide the tires look? Also how much trimming was needed and does it still rub. Looking to get exact setup. Looks amazing 

Edited by Woody4444
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On 7/9/2020 at 4:23 PM, Smrtasp said:

Finally got mine done. 2019 Denali 4x4 with 2.5 front level and 1.5 rear level using SuspensionMaxx kit. Wheels are 20x9 +1 Fuel Rage D711 with 295/60/20 Nitto Ridge Grapplers. Had to do some minor trimming on the backside of the wheel well carpeting and a little to the inside edge of the mud flaps. 

 

 

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Update on mine for those that have been asking how the ride is. The ride is definitely nowhere near like it was and its actually bad in some cases. I was completely expecting a firmer feel and actually wanted a bit more feel to it. I’ve got this annoying issue with the rear hopping all over all the time. I've tried a number of different air pressures all the way down to 30 in the rear cold and no better. The front is butter smooth. Unfortunately in CA, every highway is under construction and with the new tires it’s just a rough ride all the time. I’ve had them balanced 3 times now and even had 1 tire replaced for being impossible to get balanced. I've also had the level kit checked to make sure nothing came loose and everything torqued and no issues there. I even called Suspensionmaxx and had them go over things with me just to make sure something wasn't installed wrong by the shop. One thing they and the shop I worked with pointed out is that with the ARC system, it could be that the heavy duty tires coupled with the stock leaf springs which will deflect a lot more are causing the ride control to attempt to constantly smooth things out which is in turn exaggerating things. 

 

I am now looking at putting Deaver leaf springs. Their design is such that it should smooth out any leaf spring based suspension as they use many thinner leafs vs a few thick ones and that on its own will remove some of the natural truck bed bounce we all have anyway. I don’t need it back to stock as I actually prefer a bit more feel of the road but it’s no longer comfortable to drive above 70. Local driving up to 55 is fine but once you get up to highway speeds on anything that isn’t 1000% perfectly smooth it’s pretty annoying. 

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14 minutes ago, Smrtasp said:

Update on mine for those that have been asking how the ride is. The ride is definitely nowhere near like it was and its actually bad in some cases. I was completely expecting a firmer feel and actually wanted a bit more feel to it. I’ve got this annoying issue with the rear hopping all over all the time. I've tried a number of different air pressures all the way down to 30 in the rear cold and no better. The front is butter smooth. Unfortunately in CA, every highway is under construction and with the new tires it’s just a rough ride all the time. I’ve had them balanced 3 times now and even had 1 tire replaced for being impossible to get balanced. I've also had the level kit checked to make sure nothing came loose and everything torqued and no issues there. I even called Suspensionmaxx and had them go over things with me just to make sure something wasn't installed wrong by the shop. One thing they and the shop I worked with pointed out is that with the ARC system, it could be that the heavy duty tires coupled with the stock leaf springs which will deflect a lot more are causing the ride control to attempt to constantly smooth things out which is in turn exaggerating things. 

 

I am now looking at putting Deaver leaf springs. Their design is such that it should smooth out any leaf spring based suspension as they use many thinner leafs vs a few thick ones and that on its own will remove some of the natural truck bed bounce we all have anyway. I don’t need it back to stock as I actually prefer a bit more feel of the road but it’s no longer comfortable to drive above 70. Local driving up to 55 is fine but once you get up to highway speeds on anything that isn’t 1000% perfectly smooth it’s pretty annoying. 

 

I think you are onto something with the ARC. You have to keep in mind that your new tire/wheel setup is probably close to 25lbs more of unsprung weight per corner due to the LT tires so they computer is having a hard time keeping up with that amount of rolling mass and constantly trying to adjust.

 

Nitto does make the Ridge Grappler in a P Metric XL 4 ply 305/55/20 which is about 18lbs lighter than your current tire. Only about .6" shorter too. Might be worth swapping to those - your ride quality should vastly improve.

Edited by hotrodz37
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I was running the 22s so this new setup is only about 12lbs more per wheel vs 25 but yes they are definitely heavier. I had originally looked at those 305/55s and while they are about .5 inch shorter (The 295/60/20 is a 34x11.5) they are also nearly 1 inch wider and there were concerns about rubbing with the offset of the wheel I chose - 20x9 +1 offset. Running those would also get me under the weight of the stock 22s and a shorter tire but I will have to do some measuring to see what another inch of tire does with rubbing on the UCA. I'm already getting a minor rubbing at full lock with these so anything wider will probably make that quite a bit worse. 

Edited by Smrtasp
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On 8/20/2020 at 5:01 PM, Smrtasp said:

I was running the 22s so this new setup is only about 12lbs more per wheel vs 25 but yes they are definitely heavier. I had originally looked at those 305/55s and while they are about .5 inch shorter (The 295/60/20 is a 34x11.5) they are also nearly 1 inch wider and there were concerns about rubbing with the offset of the wheel I chose - 20x9 +1 offset. Running those would also get me under the weight of the stock 22s and a shorter tire but I will have to do some measuring to see what another inch of tire does with rubbing on the UCA. I'm already getting a minor rubbing at full lock with these so anything wider will probably make that quite a bit worse. 

Went back and double checked the wheel and tire weights comparing the OEM 22s vs my new setup. Its actually a 19lb difference (Stock is 85lbs total and current setup is 104lbs) so quite a difference. If I change out to a 305/55/20 Nitto that will drop this to 89lbs so only a 4lb increase over stock but a 15lb difference with my current setup. I must have mixed up one of the tires when I was originally researching all of this as I was looking at a ton of different combinations. I also measured the current amount of space between the current 295/60 tire (runs at 33.9 x 11.77 width per Nitto) and my UCA and its right about 1.75 inches on each side and that was measuring off of the raised tread blocks. The 305/55 runs at 33.2 x 12.44 wide on a 9.5 inch wheel which I think will settle more into a 12.25 on a 9 inch wheel plus they are a bit shorter. Should be plenty of room and I have already done a bit of mud flap trimming to better accommodate the 34 inch tires on there now. Needless to say I went ahead and ordered the 305/55/20 Nittos today with the shop I use agreeing to buy my originals back at a decent price as they only have about 1,500 miles on them. I wont have time to get this done until the end of the week at the earliest but will report back once its done. 

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Finally pulled trigger on tire upgrade. 285 50 22s. Look so much better than anemic 285 45s. Are 10 ply so do ride harsher and I'm sure are sucking more gas...but look great none the less. Went with Radar Renegade AT5. Got great price on EBay.

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6 minutes ago, Puttnutt24 said:

Hi Mark,

Great looking wheel, any chance of directing me to some more information about them?

24x10 +31 offset

6x139.7 bolt pattern

78.1 hub bore

295/40 Atturo AZ800 

 

Wheels are for sale btw. 

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I asked this in the Mods forum but got zero response, can anybody answer?

 

I have a 2020 AT4 that came with the 18" wheels.  I'm going to upgrade to 20" after market rims with a +12 offset.  My question is can I go to a 285/55 or 285/60 without any problems?  The truck isn't leveled and I don't plan on doing it. 

thanks.

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