Jump to content

Recommended Posts

Posted

Bought a '20 AT4 diesel about a week ago.  Love the truck.  It rides rougher than I would like over potholes and bumps though.  Maybe it's because I drove some RAMs before I purchased.

 

I did lower the tire pressures to what the door sticker calls for.

 

A set of rear Bilstein 5100s for my truck is $180 and the install looks very easy.  So I would like to hear some feedback from '20 AT4 owners that have put in the rear 5100s.

 

The majority of the miles on our truck will be 80 mph interstate (I-90) with quite a bit of gravel and dirt roads once we reach our place in Montana.

 

Thanks.

Posted

Thought mine was rougher than a cob over some bumps when I first got it. It has smoothed some with more miles on it but decided to order up the rears to start and see how it does. Got them a little over a week ago and went to install and found out they were the wrong ones and just sent them back for exchange so won't know for awhile. 

 

Really enjoy this truck also. Buddy of mine is a engineer over in Flint where they build the 3.0l. He has drove a truck in the parking lot with one but not much more. Stopped by his -place and let him take mine, was really happy with what he puts together!

 

-Grover67

 

 

thumbnail (33).jpeg

Posted (edited)
50 minutes ago, Grover67 said:

Thought mine was rougher than a cob over some bumps when I first got it. It has smoothed some with more miles on it but decided to order up the rears to start and see how it does. Got them a little over a week ago and went to install and found out they were the wrong ones and just sent them back for exchange so won't know for awhile. 

 

Really enjoy this truck also. Buddy of mine is a engineer over in Flint where they build the 3.0l. He has drove a truck in the parking lot with one but not much more. Stopped by his -place and let him take mine, was really happy with what he puts together!

 

-Grover67

 

 

thumbnail (33).jpeg

Thanks Grover.  Great looking truck.  Is that Satin Steel Metallic?  That's the color I have.  I wait patiently for your thoughts on improvements to the AT4 with just the rear Bilsteins.

 

 

IMG_3522.PNG

Edited by hammick
  • Like 1
Posted

Nice looking truck hammick!

 

Mines is what they call "Dark Sky" darker than yours, kinda like blue/grey combo color.

 

Ya not sure how long the exchange time will take. Not hating how its riding right now but more curious how the shocks will make in improvements after. 

 

-Grover67

Posted
1 hour ago, Grover67 said:

Nice looking truck hammick!

 

Mines is what they call "Dark Sky" darker than yours, kinda like blue/grey combo color.

 

Ya not sure how long the exchange time will take. Not hating how its riding right now but more curious how the shocks will make in improvements after. 

 

-Grover67

That dark sky is really nice.  Might have been my color if one was available.  The Satin Steel looks a lot better in person.  Pictures make it look boring gray.

Posted
10 hours ago, hammick said:

That dark sky is really nice.  Might have been my color if one was available.  The Satin Steel looks a lot better in person.  Pictures make it look boring gray.

lol ya know what you mean on seeing them in person!

 

They brought one in shortly(Satin Steel) after I picked mine up, was more of the color I was after when I was looking. Actually was looking at the Chevy RST's but kinda fell into this AT4 as it wasn't even on my radar. So things happen......

Enjoy it!

 

-Grover67

Posted (edited)
3 hours ago, Grover67 said:

lol ya know what you mean on seeing them in person!

 

They brought one in shortly(Satin Steel) after I picked mine up, was more of the color I was after when I was looking. Actually was looking at the Chevy RST's but kinda fell into this AT4 as it wasn't even on my radar. So things happen......

Enjoy it!

 

-Grover67

Yeah I had no clue what an AT4 was.  My 4 previous trucks were 3/4 Chevy LTZ diesels.  Starting looking for a truck and really like the Trail Boss.  We need memory seats and all the safety packages though so the TB wasn't an option.  Also really wanted the 3.0 diesel.  Discovered the AT4 and spent hours trying to find one.  Finally lucked out.

 

Now that I think about it last winter I started seeing the new 3/4 ton Chevys and GMCs on the street.  Didn't care for the looks of them but did see a white one that caught my eye.  Pretty sure if was the GMC AT4 2500HD.

Edited by hammick
  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,759
    Total Members
    8,960
    Most Online
    DM22
    Newest Member
    DM22
    Joined
  • Who's Online   2 Members, 0 Anonymous, 2,964 Guests (See full list)

  • Latest Articles

  • Posts

    • So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...