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Posted
17 minutes ago, spizike9 said:


Because the “off road” version of GMCs truck really isn’t. It just has a small lift on it. Most people buy the AT4 because they like the Denali features but don’t want all the chrome. Or people like me that would be happy with a SLT but don’t want all the chrome but want more than an Elevation. 

 

Facts. The AT4 off road capabilities are a joke. The best bang for your buck is an SLT if you don't mind the chrome and then putting coilovers, UCA's, +1 rear leaf, rear shocks and traction/torsion bars on it. And then mess with the end links, sway bar bushings, etc. down the road. I like the Denali but the fact is I wasn't going to spend 15 grand on a grill, amp research steps, and the HUD display so I went with an SLT. 

 

Not trying to hate, but the Raptor is an off-road capable vehicle due to it's suspension. You could put coilovers, UCA's and a +1 leaf on an Elevation and have a more off-road worthy vehicle than an AT4. Sorry. Not a fan of the wheels either. 

  • Like 1
Posted

Just me, but, I like more rubber then wheel. For me, it's the weight trade off. Wheels that big are heavy, weight in the exact wrong place, unsung weight, and rotating mass, both effect stopping, acceleration, suspension movement, road noise. It goes on and on for me. I would never go over 18's on my truck. Just me.

  • Like 1
Posted
Not sure I understand this. Why go with the off road version of the truck and then put big street oriented rims on it? Why not leave the off road version for those that are actually going to use it as such and get a more appropriate version that better suits ones actual uses (or lack there of)?
 
Tyler
Going to guess they probably dont want all the chrome from the Denali, the at4, has most of the same features as options.

Sent from my SM-N960U using Tapatalk

Posted
On 4/29/2020 at 1:20 AM, gearheadesw said:

Just me, but, I like more rubber then wheel. For me, it's the weight trade off. Wheels that big are heavy, weight in the exact wrong place, unsung weight, and rotating mass, both effect stopping, acceleration, suspension movement, road noise. It goes on and on for me. I would never go over 18's on my truck. Just me.

Just a heads up, but the tires weigh twice as much as the wheel does.  Going with more tire will have significantly more adverse affects than with more wheel.

  • Like 1
Posted

I have been struck by how my 2019 AT4 with 20" Goodyear's is inferior at hill climbing to my prior 2016 Suburban Z71 with 18" Nokian Rotiiva's. We have a roughly one mile 20 - 30% grade up the side of a mountain we use as a bypass when the road is out. The AT4 has failed to make the ascent twice when a bit wet - not  yet mud.  The Z71 never had an issue, even if it was a overgrown and wet.

Posted (edited)
On 4/30/2020 at 5:48 PM, bgsntth said:

I have been struck by how my 2019 AT4 with 20" Goodyear's is inferior at hill climbing to my prior 2016 Suburban Z71 with 18" Nokian Rotiiva's. We have a roughly one mile 20 - 30% grade up the side of a mountain we use as a bypass when the road is out. The AT4 has failed to make the ascent twice when a bit wet - not  yet mud.  The Z71 never had an issue, even if it was a overgrown and wet.

Realistically the difference between 18" vs 20" wheels is going to be negligible if you have them wrapped in same type of tire. Sure more sidewall helps but those are very similar wheels. How aggressive are the Goodyears? There are all kinds of other factors as well. You have it in 4lo? Traction control on? You have lockers on your Suburban? Etc. 

 

The AT4 suspension is total garbage for what you pay for it, but that's not going to make much difference climbing a hill. Another thing to keep in mind is the weight distribution on a truck vs an SUV. A truck is heavy up front and light in the a$$ where as a SUV  the weight is more evenly distributed. A full size truck inherently is not going to be a great hill/rock crawler due to the weight disparity. 

 

That being said, you can turn one of these vehicles into a bad@$$ off-road vehicle with about 5k worth of suspension and tires. Just hardly ever see it done on here. There is nothing more fun that sliding one of these full size rigs around. But everyone on here wants to put a POS 6" Rough Country lift and some Specialty Forged knockoffs. To each his own I guess...

Edited by superhighsierra
  • Like 1
Posted

Traction on a damp/wet hill climb can be very tricky in a truck.  Since you are most likely going slow, suspension wont play as big a role as it would for rock crawling, but the lack of weight in the back of a truck, like mentioned above, can play a large factor in available grip/traction since the back end will not want to stay planted and will want to hop considerably more than a Suburban's would.  Temporary corrections for this would include, but not be limited to, lower tire pressure and/or increased weight in the bed of the truck.  Also, I find that when I get to the point where I lose traction in 4-Lo on wet uphill treks, I switch to 4-Hi and "Let'em Spin".  Front to rear weight disparity with trucks can make for tricky uphill climbs, but they sure are fun to try regardless.  Good luck with your future attempts and take a video if you can, everybody loves a good 4x4 video, fail or not :)

 

For your enjoyment, here's an individual getting it done with an older chevy.

 

 

 

Posted (edited)
22 hours ago, Gangly said:

For your enjoyment, here's an individual getting it done with an older chevy.

 

 

 

"Older"...

Edited by Cpl_Punishment
  • Haha 1
Posted
1 hour ago, Cpl_Punishment said:

"Older"...

Meant older body style, my fault. ?

  • Like 1
  • 3 months later...
Posted
On 6/4/2019 at 3:32 PM, voltedge said:

I guess I'm on the weird side or something, but in my opinion to pay what any of the new trucks cost and then actually use them off road is not my idea of acceptable. It would be better to just get an older vehicle that costs considerably less or better yet an atv or such that is purpose built for off road riding. Anyway, here's my AT4 with 22" GM Accessories black chrome coated wheels and Nitto Ridge Grapplers in an LT285/50/22 which is a 33.5" tire set up. As you can tell, they're a good bit wider than stock. I really like the way it rides and handles albeit a tad harsher, but way better handling in turns. If you see this truck off roading call 911, cause it was obviously stolen! LOL!  Seriously, I will drive it in the snow which is rare in the South and it could see a dirt road or two as well.

at46.jpg

TRK19.jpg

Great looking truck.  Do you have any sort of rubbing?  Is the truck still at the factory height?

Posted
On 5/4/2020 at 11:12 PM, ZDAT4 said:

Here’s factory 22s with 35s on them 

FAA1EE79-B680-4A56-89D2-742F2C11A84E.jpeg

What size tires are those overall?  Brand?  Did you have to lift or is the ride at factory height?  Any rubbing?

Posted
On 8/7/2020 at 1:35 AM, Bonatti84 said:

What size tires are those overall?  Brand?  Did you have to lift or is the ride at factory height?  Any rubbing?

35x12.50. Leveling kit. Minimal rubbing if I turn out of a steep driveway or something like that, but very very minimal overall

Posted
On 6/3/2019 at 6:27 PM, amxguy1970 said:

Not sure I understand this. Why go with the off road version of the truck and then put big street oriented rims on it? Why not leave the off road version for those that are actually going to use it as such and get a more appropriate version that better suits ones actual uses (or lack there of)?

 

Tyler

Lots of reasons. SLT VS at4

 

colored bumpers

carbon bed

factory lift

 

some people simply want the AT4 regardless of their use. 

Posted

And I also think you can option the AT4 the same as the Denali right ? Where as the SLT does not get all the options ? 

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