Jump to content

Re-geared my 2019

Luckyfd1
 Share

Recommended Posts

Luckyfd1 Enthusiast

Luckyfd1

Posted
Posted (edited)

IMG_5497.thumb.jpeg.3390ec775066890af1ed7e2e888ea36e.jpegQuick introduction: I have a 2019 Chevy Silverado LT. The truck has Camburg UCA’s., King IBP 3.0 coil over front shocks, King IBP 3.0 rear shocks. Deaver leafs springs, 35” BFG, amp electric steps, and quite a few other additions to the truck.

 

I wanted to post about my recent experience with re-gearing my truck. Hopefully this will help somebody somewhere because the information that I tried to find is extremely limited. 
 

My gear ratio was 3.23 and I went to 4.56. The company that installed the gears originally put a Hyper-Tech in-line speedometer and gear calibrator on the truck. It worked fantastic driving around town, but once I broke the gears in, I started driving and on the freeway. While on the freeway doing 79 mph I got a notification on the dash that stated truck is governed at 92 miles an hour. Then the throttle was dead (governed)  Keep in mind my speedometer was dead on with GPS. I spoke with Hyper-Tech about this and they stated it’s potentially too big of a gear change. They only know of the in-line calibration working up to 4.10 gears. (That is not confirmed).
Something in the rear end wasn’t talking with the computer in the front end so I bought an edge pulsar LT in-line calibrator thinking that that would work better. I ran into the exact same problem except the governor was now set at 112 MPH (which is the stock setting on that truck). But at 85 miles an hour my driveshaft felt like it was going to detonate. Basically the rear end was turning the driveshaft RPMs as if it was doing 112 mph. 
I finally found a company that re-geared a 2019 Chevy Silverado with 4.56 gears and they ran into the exact same issue. The way they ended up fixing it was the truck had to be tuned not performance tuned just tuned so it accepts the new gears.

 

I’ve been dealing with this problem for about a month now and I finally caught a break two days ago and received that information and had the truck tuned and it drives absolutely perfect shift. Perfect. Everything is like stock. 
 

Hopefully this helps somebody looking for some information. I don’t know if this applies to 2022.5 and up I just know specifically it applies to 2019 through 2022 pre-refresh. 

Edited by Luckyfd1
  • Like 1
  • Replies 30
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Luckyfd1
Luckyfd1

Come on vacation leave on probation that’s the Vegas motto   besides bad decisions, make better stories! 

Transient
Transient

Those tires would be called "Metric 35s."  Since you like Rough Country, look into their catalog.  They have a speedo calibration device.  Plug it into your computer, run the install wizard, tell it y

Luckyfd1
Luckyfd1

Quick introduction: I have a 2019 Chevy Silverado LT. The truck has Camburg UCA’s., King IBP 3.0 coil over front shocks, King IBP 3.0 rear shocks. Deaver leafs springs, 35” BFG, amp electric steps, an

Posted Images

Luckyfd1 Enthusiast

Luckyfd1

Posted
  • Author
Posted

Yes, I wasn’t very specific. lol. ECM/TCM. He was able to unlock both from his laptop. Which I thought was odd because all the ECM and TCM tunes you buy online you have to get to those units to unlock them, but I guess there’s other ways. IDK? 

johnnyquick Enthusiast

johnnyquick

Posted
Posted
4 minutes ago, Luckyfd1 said:

Yes, I wasn’t very specific. lol. ECM/TCM. He was able to unlock both from his laptop. Which I thought was odd because all the ECM and TCM tunes you buy online you have to get to those units to unlock them, but I guess there’s other ways. IDK? 

Yeah, I had always heard that you have to "unlock" the ECM and TCM to program them, there are units that can be bought for that now but I think they only allow there own tunes.

It would be GREAT if you could find out what program etc he was using.

Glad you finally got it figured out, how is the performance now and any info on cruise RPM at like 75mph?

Is gas mileage still good?

Luckyfd1 Enthusiast

Luckyfd1

Posted
  • Author
Posted

Thanks! I will ask the guy and post it on here. So I didn’t have him delete anything or change anything except for the tire size and the gear modification. The truck is getting a Whipple, long tube, and DOD delete kit, larger cam. So we’re gonna have to tune the truck after these parts are installed. But as of right now, I can’t tell you how amazing the gear change is. For those who have changed gears before sometimes it feels like it didn’t change anything at all… I still have really good RPMs on the freeway and it just wants to pull the tires off on the surface streets.

  • Like 1
Luckyfd1 Enthusiast

Luckyfd1

Posted
  • Author
Posted (edited)

Come on vacation leave on probation that’s the Vegas motto

 

besides bad decisions, make better stories! 

Edited by Luckyfd1
  • Haha 2
johnnyquick Enthusiast

johnnyquick

Posted
Posted

Check this outhttps://www.ebay.com/itm/136971835082?_skw=whipple+supercharger+5.3&itmmeta=01KGK9743R8KV2DXCTSZHTJ9R2&hash=item1fe42856ca:g:AUIAAeSwpbtpchQW&itmprp=enc%3AAQALAAAA8O7PUuNWmJ%2B%2BUShgI9tQz%2Fq%2FsqIpJWM851932xFIQ%2BBCVvHLXWfgiaI8r4daX43MT1tvhF3vfsp9Hw%2B6lNSVjg8vf6odYZbPIdJjsnojMvCJEzoy853HlO2UJcioNNha2hAZElhvPYQ5gVZ%2BcdmQ9qc%2BE3eknM3U5Uo5jyNLYaUFp8jtMQ%2Br7qY5gbpk6pSr3SSdEypq3gRDB4%2BvplxIwWWRNcdNHbKPI%2FnlYXHArFXeaKn6ysWj0noojXanImP%2FW4nsJ6dtmsS5386LzgqU%2F1QC4%2B4kkYNPxs0Z5N0p02cykx2lhWq2F30MbHCKlPqVeQ%3D%3D|tkp%3ABk9SR4jCnOmEZw

 

6 minutes ago, Luckyfd1 said:

Come on vacation leave on probation that’s the Vegas motto

 

besides bad decisions, make better stories! 

Luckyfd1 Enthusiast

Luckyfd1

Posted
  • Author
Posted (edited)

That’s a good deal. 1/2 off almost! 
 

my house is kinda like the federal government. I get a certain amount to spend every year, if I don’t spend it, I won’t get as much the next year. I’m at the end of the fiscal year so I’m dumping money! 

Edited by Luckyfd1
  • Like 1
Albert Palos Enthusiast

Albert Palos

Posted
Posted

Appreciate the info Luckyfd1, I too have a 2019 Silverado 5.3l, but it's a RST, I Have Cognito upper control arms with 3.5 Rough Country coilovers and almost 35" in tires but not quite. I've been looking for some one to tune or calibrate the speedometer odometer to match tire size for better shift points. I've also am considering the hyper tech speedometer odometer calibration programmers but now that you mentioned the freeway issues, I'm glad I haven't pulled the trigger. Would you be willing to give me some info as to where you had the calibration done. And the cost. I'm in the L.A area 562 area code. Thanks

 

Transient Senior Enthusiast

Transient

Posted
Posted
11 hours ago, Luckyfd1 said:

Come on vacation leave on probation that’s the Vegas motto

 

besides bad decisions, make better stories! 

Except in Utah, where the Vegas tag line is "What happens in Vegas stays in Vegas,.... except STDs.  That ****** will haunt you for life."

  • Haha 1
Transient Senior Enthusiast

Transient

Posted
Posted
11 hours ago, Luckyfd1 said:

That’s a good deal. 1/2 off almost! 
 

my house is kinda like the federal government. I get a certain amount to spend every year, if I don’t spend it, I won’t get as much the next year. I’m at the end of the fiscal year so I’m dumping money! 

That's not the federal government fiscal policy.  That's a government agency policy.  The federal government policy is to spend, spend, spend, even when they'd don't have the money. 

  • Like 1
Transient Senior Enthusiast

Transient

Posted
Posted
9 hours ago, Albert Palos said:

Appreciate the info Luckyfd1, I too have a 2019 Silverado 5.3l, but it's a RST, I Have Cognito upper control arms with 3.5 Rough Country coilovers and almost 35" in tires but not quite. I've been looking for some one to tune or calibrate the speedometer odometer to match tire size for better shift points. I've also am considering the hyper tech speedometer odometer calibration programmers but now that you mentioned the freeway issues, I'm glad I haven't pulled the trigger. Would you be willing to give me some info as to where you had the calibration done. And the cost. I'm in the L.A area 562 area code. Thanks

 

Those tires would be called "Metric 35s."  Since you like Rough Country, look into their catalog.  They have a speedo calibration device.  Plug it into your computer, run the install wizard, tell it your OE tire size and then your new tire size, and it'll write the code.  You then take it to your truck, remove 1 plug under the drivers side dash, plug the RC wire harness into that port, insert plug you just remove into the RC harness, and then tuck the rest of the wires away.  The entire process should take you less than an hour.  I've been running the RC speedometer calibration device for over 2 years.  No problems, yet (knock on wood).

  • 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
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.3k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,732
    Total Members
    8,960
    Most Online
    user087
    Newest Member
    user087
    Joined

  • Who's Online   4 Members, 1 Anonymous, 829 Guests (See full list)

  • Latest Articles

  • Posts

    • bruceb58
      Road Master Active Suspension

      By bruceb58 · Posted

      This doesn't look like a GM truck. Not needed on a HD truck
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      It varies a ton around me. Some places are still at $5.00 or higher and others are way down into the $4's.   Offroad diesel was $4.02 at the one station I passed today.
    • Hdwrguy
      2027 Chevrolet Silverado: Official Discussion

      By Hdwrguy · Posted

      So after reading the reveal from Chevrolet, I kept asking myself...why did the trim levels change?   Here are the official ones:   Work Truck (WT): The quintessential fleet truck, built with durable, easy-to-clean interiors for commercial or utilitarian use. Custom: A stylish, road-oriented trim that adds a more refined appearance, standard dual exhaust, and modern exterior styling. Custom Trail Boss: An entry-level off-roader featuring a 2-inch factory suspension lift and 34-inch mud-terrain tires on a budget. Silverado: Serving as the new base consumer truck (replacing the previous LT trim), it comes standard with the Z71 off-road package when equipped with 4WD. Trail Boss: Steps up the off-road hardware with the 2-inch lift, 34-inch tires, monotube shocks, an exclusive off-road hood, and more premium interior options. ZR2: The flagship off-roader. It boasts 35-inch mud-terrain tires, Multimatic DSSV dampers, front and rear electronic lockers, forged carbon-fiber interior accents, and an available hardcore Bison Edition (co-developed with AEV). High Country: The pinnacle of luxury. It replaces bright chrome with modern satin chrome, 22-inch wheels, premium leather, real wood interior trim, a panoramic sunroof, and an exclusive front-passenger touchscreen. As others have stated, why would you want a Silverado - 'Silverado' - wth?? LT needs to remain!!!   Also, there will no longer be a dedicated Z71 model.  All 4x4 trucks will have the Z71 package. Carplay is also something that cannot be removed.  Hopefully it will remain.     I am excited about the 5.7L V8 (350 C.I.D.)  Old school Chevy power.  My only concern is whatever version of AFM/DFM cylinder deactivation.  Too bad that isn't an option a buyer can choose to have or not.   I will definitely be stopping by my local dealership when these trucks start showing up.
    • richard wysong
      Gas Prices

      By richard wysong · Posted

      I haven't seen diesel for less than $5.30 anywhere in my area
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      The not as clean as one would assume theme with the new engine oil, that reminds me of comments over the years with mechanics not always being so on board with filling an oil filter, not from the center anyway due to that typically being the clean side of the filter, danger of some contaminant falling into the filter if not careful but the realization now that the oil may not be as pure as one had assumed it would surely be. Yes it would be possible to fill from the small holes but that means messing with something to prop open the anti drain back valve if the filter is so equipped and not damage that valve in the process. Me, I have hardly ever prefilled an engine oil filter however I have prefilled diesel fuel filters with a filter on a fuel bulk tank and for anyone that has messed with diesel engines with filters and units that have a limited or no way of priming them, putting on a dry filter is a bad day to say the least with those crappy systems. But anyway back to not so clean engine oil, indeed perhaps its not so bad after all that I have not made a practice of prefilling oil filters.    As Grumpy Bear commented on keeping things clean, that I really have to wonder what the typical practice is at a dealer or any other shop that changes engine oil, do they make sure to wipe or wash off the oil plug and certainly if it fell into some gunk or onto a dirty floor, or that they wiped the filter mounting flange and didn't go and use some dirty rag and end up adding dirt to the inside of the head of the filter mount. Or be careless in how they stored or handled the new filter and if they were bumping into items under the vehicle with the filter opening facing up and having dirt drop right into the filter and if so right into the threaded center that is on the clean side. The top side, did they clean away the built up gunk that may be around the filler before removing the cap or to be really careful at that point that something right close to the filler hole that was hidden under the caps flange won't fall into the engine. Or did they clean the funnel or was that just laying there covered in oil from the oil change before and dust kicked up from sweeping the floor stuck to the oil and now that will go running into the next persons engine due to just not cleaning the funnel as "they won't know anyway" attitude as that young guy is more worried about taking a break so he can go outside and smoke a joint. Just random points that came to mind when I think about what some hired personnel may do that the shop foreman has no idea of or perhaps the whole attitude of some shops may be "eh ... who cares, they will never know the difference anyway".  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...