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Speed limited to ....????

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jz777
jz777

I believe the limited speed has more to do with what tires the truck is outfitted with from the factory.   All tires have a speed rating, and you cannot exceed it without risking tire failur

OnTheReel
OnTheReel

Yeah, NHT trucks are somewhat hard to come by. But the dealer here almost exclusively orders them. Pretty much every 6.2 that’s not a Denali comes ordered with it. I had a HC, LTZ and a few SLTs to pi

TNTSierra
TNTSierra

Because I want too.......and also,  I quote, “I have a need, a need for speed!”  

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted (edited)
21 minutes ago, Dcor388 said:

2019 LTZ 6.2 with MTP and 3.73 rear end 106 top speed limited 20" rims

How did you get 3.73 rear end???   I have 3.23. Would love 3.73s. I thought highest  rear end was 3.42s in gas and 3.73 with the new half ton diesel. 
 

I have 2019 High Country with 22s and it shuts off at 112 mph. 

Edited by TNTSilverado
Dcor388 New Member

Dcor388

Posted
Posted

Had to order the Max Trailering Package. Has heavier springs and shocks and lower rear gears. Unbelievable difference with the 6.2....bit stiffer rear end ride but worth it for the launch and mid range acceleration 

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

Max trailering package gives ya 3.42s, not 3.73s. I have the same truck, 2019 LTZ 6.2 with NHT (max trailering package).

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted
5 minutes ago, OnTheReel said:

Max trailering package gives ya 3.42s, not 3.73s. I have the same truck, 2019 LTZ 6.2 with NHT (max trailering package).

That’s what I thought. I looked for one with 3.42 but couldn’t find one. 
 

3.73s would be awesome to have though. 

redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)

2019 T1

    GT4    Rear axle, 3.73 ratio
On Silverado Custom  -  Included and only available with (BD1) Custom Max Trailering Package. 
On LT and RST -  Included and only available with (B4U) Diesel Off-Road Package. 

On others - not available  

Not available on 2019 T1 Sierra 

 

2019 Silverado

NHT         Max Trailering Package, includes 9.76" rear axle, enhanced cooling radiator, revised shock tuning for increased control, heavier duty rear springs, increased RGAWR and (KW5) 220-amp alternator
On Custom -  Required and only available with (BD1) Custom Max Trailering Package. 
On LT and RST -  Requires (L84) 5.3L EcoTec3 V8 engine, (Z82) Trailering Package, (G80) locking differential and 18" or 20" wheels and tires. Includes (GU6) 3.42 axle ratio and (JL1) trailer brake controller. Not available with (Z71) Z71 Off-Road Package. 
On LTZ -  Requires (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine and 18" or 20" wheels and tires. Includes (GU6) 3.42 axle ratio. Not available with (Z71) Z71 Off-Road Package. 
ON HC -  Requires 4WD model and (L87) 6.2L EcoTec3 V8 engine. Includes (GU6) 3.42 axle ratio. Not available with (Z71) Z71 Off-Road Package or 22" wheels.

Not available on either Trailboss

 

2019 Sierra 

NHT         Max Trailering Package, includes 9.76" rear axle, (GU6) 3.42 axle ratio, enhanced cooling radiator, revised shock tuning for increased control, heavier duty rear springs, increased RGAWR and (KW5) 220-amp alternator
On SLE and Elevation -  Requires (L84) 5.3L EcoTec3 V8 engine, (Z82) Trailering Package, (G80) locking differential and 18" or 20" wheels and tires. Includes (JL1) trailer brake controller. Not available with 22" LPO wheels or (X31) X31 Off-Road Package. 
On SLT -  Requires (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine and 18" or 20" wheels and tires. Not available with 22" LPO wheels, or (X31) X31 Off-Road Package.

Not available on base sierra, AT4 or Denali

 

 

 

Edited by redwngr
OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted
34 minutes ago, TNTSilverado said:

That’s what I thought. I looked for one with 3.42 but couldn’t find one. 
 

3.73s would be awesome to have though. 

Yeah, NHT trucks are somewhat hard to come by. But the dealer here almost exclusively orders them. Pretty much every 6.2 that’s not a Denali comes ordered with it. I had a HC, LTZ and a few SLTs to pick from. The HC was the wrong color and the SLTs couldn’t get the tech package at that time so I landed with the LTZ.

 

From what I’ve seen, there’s not a big performance difference between 3.23 and 3.42 trucks. They are all within a tenth or two of each other to 60.
 

3.73 would definitely make a more noticeable difference, but only getting it with a 6 speed or a Diesel is a 👎 from me.

  • Like 1
Transient Senior Enthusiast

Transient

Posted
Posted
Is there any good reason to be going faster than that?
Some states have higher speed limits than others, and trying to make a pass in those states will require higher speed.

Also, going offroad, such as the Bonneville Salt Flats, and playing around is another good reason.

Both of those scenarios I've experienced. I hit the speed limiter on my Silverado when passing a semi on a 2 lane road. It surprised me. Fortunately, there was no oncoming traffic that I was trying to beat when I made my pass.

Sent from my SM-N960U using Tapatalk

Cjanik Enthusiast

Cjanik

Posted
Posted
On 3/15/2021 at 3:11 PM, TNTSilverado said:


 

I have 2019 High Country with 22s and it shuts off at 112 mph. 

Strange,

2020 High Country with 22s and mine shuts off at 106.

 

 

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted
10 minutes ago, Cjanik said:

Strange,

2020 High Country with 22s and mine shuts off at 106.

 

 

Ya. I have seen that too with a few 2020s. Idk if it’s a 2019 thing but I believe another gentlemen on here has a 2019 and his is 112 also. Must have changed it up for 2020. I have the Bridgestone Alenza tires. What’s does yours come with??

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted
On 1/27/2020 at 2:23 PM, Booger T said:

Is there any good reason to be going faster than that?

Because I want too.......and also,  I quote, “I have a need, a need for speed!”  

  • Like 1
Cjanik Enthusiast

Cjanik

Posted
Posted
25 minutes ago, TNTSilverado said:

Ya. I have seen that too with a few 2020s. Idk if it’s a 2019 thing but I believe another gentlemen on here has a 2019 and his is 112 also. Must have changed it up for 2020. I have the Bridgestone Alenza tires. What’s does yours come with??


same tires, Alenzas

Booger T Enthusiast

Booger T

Posted
Posted
20 hours ago, TNTSilverado said:

Because I want too.......and also,  I quote, “I have a need, a need for speed!”  

Well good for you😐

  • Haha 1
TXTrlBoss Enthusiast

TXTrlBoss

Posted
Posted

Obviously a recent (past 3 months) software update has reduced the speed limit on mine from 110+mph to 98mph.  Stock 18 inch rims with GY Duratrecs.

t-bone Enthusiast

t-bone

Posted
Posted

2021 Trail Boss Custom 6.2 w/20's hit 115mph on the GPS because my tires are larger than stock. Computer ends your fun at 112mph on 20's, 98mph on 18's.

 

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