Jump to content

Recommended Posts

Posted (edited)

I would like to have the factory lift added to my 2020 Sierra 1500 Elevation.  I spoke with the dealership and they said GM has them replacing the rear springs in additional to the lift.

 

Has anyone done this and can speak to if it changed their ride quality?  Parts guy said the elevation has weaker springs?  I would like to do the factory lift vs aftermarket to avoid voiding the warranty.

 

Thnx

Elevation.jpg.cea86459a27a195a7f492490c6842349.jpg

Edited by bmdupont
Posted

They didn't change my springs. The kit doesn't even show springs. Sounds like the stealership is at it again... Verify the kit fits your truck. Some others claimed they have composite springs and the kit wouldn't work with that.

Sent from my Pixel 3 XL using Tapatalk

Posted

The replacement are the rear shocks.  the GM 2” lift replaces the original Rancho shock with the Rancho Monotubes shocks which are in the AT4s and Trail Boss and they are a significant change in ride quality especially with high speed bumps.  

Posted

That is because you most likely have composite leaf springs, the rear lift blocks are not designed to work with them.  You would have to swap leaf springs to use the blocks correctly.

Posted
38 minutes ago, pewterliftedz said:

That is because you most likely have composite leaf springs, the rear lift blocks are not designed to work with them.  You would have to swap leaf springs to use the blocks correctly.

Correct. I believe the LT and Elevation trims have composite springs. Thus they need a full change out for the factory lift. 

Posted

I did not buy it because I am not a fan of Rancho shocks.  I switched mine out for Bilstein last week.  The dealer told me that they are heavier duty 1/2 shafts and you get a calibration plus you do not void your warrantee.  They suckered me into their CIA with that warrantee BS.  With the Bilstein shocks you can go up 2” in the front by changing the perch clip location on the strut which is kind of what Rancho does, just moves the perch up for the trail boss.

 

Posted
I did not buy it because I am not a fan of Rancho shocks.  I switched mine out for Bilstein last week.  The dealer told me that they are heavier duty 1/2 shafts and you get a calibration plus you do not void your warrantee.  They suckered me into their CIA with that warrantee BS.  With the Bilstein shocks you can go up 2” in the front by changing the perch clip location on the strut which is kind of what Rancho does, just moves the perch up for the trail boss.
 
The trailboss struts are also a little longer. What i plane on doing in the future is using the bilstien stut designed for the trailboss to get the lift i want

Sent from my SM-G973U using Tapatalk

  • Like 1
Posted
On 9/14/2020 at 6:03 PM, bmdupont said:

I would like to have the factory lift added to my 2020 Sierra 1500 Elevation.  I spoke with the dealership and they said GM has them replacing the rear springs in additional to the lift.

 

Has anyone done this and can speak to if it changed their ride quality?  Parts guy said the elevation has weaker springs?  I would like to do the factory lift vs aftermarket to avoid voiding the warranty.

 

Thnx

Elevation.jpg.cea86459a27a195a7f492490c6842349.jpg

Don't waste your money on the factory Rancho's. I swapped mine out for 5100's after 4k miles.

Posted

The Bilstein's are really nice.  A bit firmer than the Ranchos but not harsh.  A hundred thousand years ago when the Z71 package actually meant off road capability Bilstein's were part of the package.  It's simply a business case, Rancho/s are much cheaper.

Posted
21 hours ago, fatwhiteboy said:

The Bilstein's are really nice.  A bit firmer than the Ranchos but not harsh.  A hundred thousand years ago when the Z71 package actually meant off road capability Bilstein's were part of the package.  It's simply a business case, Rancho/s are much cheaper.

You don't think the Bilstein's they used back then from the factory were of the cheaper variety as well? 

 

The old Z71 package isn't much different than the one today, shocks, wheels and tires, stickers, back in the day it added a locker which is pretty much included anyways on many trims. The larger air filter isn't needed as they sufficiently cover that with the regular intake/filter. It does add some electronics but the package is just the same as it was a hundred thousand years ago, so  guess that means these trucks have some actual off road capability then huh? I promise a new truck will out do an old truck off road. 

 

Also, Ranch has higher end shocks like Bilstein does and both have bottom of the barrel base shocks for a cheap price, upgrading to a more expensive shock better be an improvement, but that is nothing to jab as the base shocks, it helps keep the price down and does everything they are asked of. I had zero issues with my shocks on my Z71 and all the back country driving they did. Finally replaced them around 50k with the Bilsteins, set them one notch below the highest setting, it does ride rougher but does handle larger bumps better. All in all a wash, not some miracle shock people make them out to be but a small improvement.

 

Tyler

  • Like 1
Posted

I've mentioned it on multiple occasions now but my factory Rancho's on my Z71 did great off roading.  They are definitely a softer shock but that's what I want when off road because it keeps the truck from beating the snot out of me.  I have a little over 15k miles on my truck right now and the shocks are getting too soft, but I'll install the Eibachs sitting on the work bench soon enough.  Remember though, a stiff suspension isn't exactly a great thing when off road driving unless you want your fillings to rattle out of your teeth.  Soft and smooth can be a good thing when hitting fire roads and sendero's.

  • Like 2

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   4 Members, 1 Anonymous, 1,856 Guests (See full list)

  • Latest Articles

  • Posts

    • 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. 
    • Monday looks like a good day for the dealer to test an ac issue. Hopefully it all turns out good.
    • Paid $2.72 for E85 today.
    • Welcome back! No, it definitely doesn't pass the sniff test. Even "ceasefire" needs an alternative definition these days.    $5.29 at Kroger today
    • That makes sense, and I think you are describing the real product problem. Capturing data is the easy part. If the owner or technician has to manually dig through five minutes of millisecond-level logs, the product has already failed. The device would be at the ECM harness, not at the OBD port, so I agree that data retrieval and event marking need to be thought through carefully. The way I am thinking about the architecture is: The recorder itself should not depend on a phone, app, Bluetooth, Wi-Fi, or cloud connection to capture the event. It should always keep a local rolling buffer and lock the event locally. A button, phone app, or small cabin device would only act as an event marker. If the driver feels a stumble and presses the button 10–30 seconds later, the pre-buffer has to already contain the useful data. For data retrieval, the practical options would be a sealed service USB lead, Wi-Fi download, or a phone/cabin companion device. I would not expect the owner to remove the ECM-side module or work with raw files directly. The cloud or AI side would be for interpretation, not for capturing the event. The truck may have no connection when the issue happens, so the evidence has to be saved locally first. After that, cloud processing could help decode the data, compare it against baselines, and generate a readable report. For the first version, I would keep the automatic triggers conservative and objective: driver event marker bus-off error passive voltage drop / brownout device reset FIFO or queue overflow a normally periodic message disappearing side-to-side communication mismatch, if the topology supports that For “learning normal,” I agree with your point, but I would not want to overclaim it as automatic root-cause diagnosis at first. A realistic first step would be learned baseline comparison for that specific vehicle and operating condition. For example, a value would only be compared against similar conditions: RPM range load / MAP throttle position gear / vehicle speed coolant and oil temperature battery voltage AFM/DFM state, if decoded and validated Then the report could flag things like: this periodic message disappeared compared with its normal timing this value deviated from this vehicle’s normal range under similar conditions the same abnormal pattern repeated after the same type of event the anomaly occurred together with voltage, oil-pressure, misfire, or communication changes But I would still call that “abnormal pattern detected,” not “replace this part,” unless there is enough validated repair data behind it. So the intended product would not be “here is a huge log.” It would need to be an event package: what triggered the capture how much pre/post data was preserved what changed before and after the event whether the device itself reset, overflowed, or saw a bus error selected graphs around the event raw data only as supporting evidence From your perspective, what would make this kind of report useful instead of just another datalog? For example: What are the top 5 parameters or events you would want highlighted first? Would you trust a learned baseline for that specific vehicle, or would you prefer fixed thresholds? How much false-positive flagging would be acceptable before you stopped looking at the reports? What would a one-page report need to show for an independent shop to take it seriously? For misfire, AFM/DFM, oil pressure, or U-code complaints, what would you want the tool to flag automatically?
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...