X31 offroad package

[Mstorm18]

Is that included in the AT4? I can't seem to find any information confirming one way or other. I'm assuming that it is or is it somehow different?

[calgator73]

28 minutes ago, Mstorm18 said:

Is that included in the AT4? I can't seem to find any information confirming one way or other. I'm assuming that it is or is it somehow different?

X31=Z71.  The AT4 replaces certain suspension components of the x31 package and adds more trim.

[Dunn]

It already has it

[redwngr]

X31 is available on trims lower than the AT4

 

X31 Off-Road Package, includes Off-Road suspension, (JHD) Hill Descent Control, (NZZ) skid plates, (K47) heavy-duty air filter and X31 hard badge

 

AT4 has

JHD, NZZ, and K47 as standard equipment

It has   

Z7X    Suspension, Off-Road with 2" factory installed lift and monotube shocks

 

 

Trim wise, the AT4 is positioned between SLT and Denali  (LTZ and High Country)

[JimCost2014]

Isn't the AT4 a more upscale Trail Boss?

[blckblt]

9 hours ago, JimCost2014 said:

Isn't the AT4 a more upscale Trail Boss?

Basically yes.  However there are some features that were oddly left off the TB trucks.  I had a 2020 TB with every package you could get.  I didn't have auto dimming rear mirror, power folding side mirrors.  Those options were standard on the 2021 AT4 that I bought.  my 2009 LT chevy 1500 had those features.....

 

AT4 gains Driver Alert 2, tech package, carbon pro as packages.

[redwngr]

11 hours ago, JimCost2014 said:

Isn't the AT4 a more upscale Trail Boss?

Kinda sorta....

 

Most agree that in standard form (yes there are some differences)

work truck = base sierra

LT = SLE

LTZ = SLT

HC = Denali

 

GM slots the other trims sorta like this:

Work Truck    Custom    Custom Trail Boss    LT     RST    LT Trail Boss    LTZ              High Country 

Sierra                                                                SLE        Elevation                SLT    AT4    Denali

 

[newdude]

11 hours ago, JimCost2014 said:

Isn't the AT4 a more upscale Trail Boss?

 

 

More or less.  LT Trail Boss is based off the RST trim.  AT4 is above SLT, almost to Denali based.  

[Mstorm18]

On 5/17/2021 at 6:40 PM, redwngr said:

X31 is available on trims lower than the AT4

 

X31 Off-Road Package, includes Off-Road suspension, (JHD) Hill Descent Control, (NZZ) skid plates, (K47) heavy-duty air filter and X31 hard badge

 

AT4 has

JHD, NZZ, and K47 as standard equipment

It has   

Z7X    Suspension, Off-Road with 2" factory installed lift and monotube shocks

 

 

Trim wise, the AT4 is positioned between SLT and Denali  (LTZ and High Country)

 

Thanks for the info. Doesn't the X31 Off-Road package come with the same monotube shocks? So is the only real difference the 2" factory installed lift between the 2 packages? Or is the Z7X suspension different than the X31's version?

[Dunn]

x31 and z71 come with twin tube ranchos......AT4 and Trail boss come with monotube Ranchos

 

the AT4/TB shocks are better.....

[Dlarimer57]

I think the X31 package also includes 20" rims vs 18"

[Dunn]

36 minutes ago, Dlarimer57 said:

I think the X31 package also includes 20" rims vs 18"

Not on all trims

[Amcguy1970]

11 hours ago, Dunn said:

Not on all trims

 

Good, that is absolutely silly to have the larger rims on the off road package. It should always include the smaller wheel option. 

 

Tyler

[redwngr]

As posted by Dunn, 20" availability/inclusion depends on trim.

 

The rest of the notes on X31 :

 

X31         X31 Off-Road Package, includes Off-Road suspension, (JHD) Hill Descent Control, (NZZ) skid plates, (K47) heavy-duty air filter and X31 hard badge
 

On Base sierra  -  Requires Crew Cab or Double Cab 4WD model, (Z82) Trailering Package and AT tires. Includes (G80) auto-locking rear differential and (NQH) 2-speed transfer case. 
 

On SLE -  Requires 4WD model and AT or MT tires. Includes (UHN) 18" 6-spoke machined aluminum wheels with Dark Grey Metallic accents, (XCK) 265/65R18SL all-terrain, blackwall tires and (NQH) 2-speed Auto-Trac transfer case. Includes (N10) dual exhaust. Included with (RFX) X31 Off-Road and Protection Package. Not available with (L3B) 2.7L Turbo engine, (NHT) Max Trailering Package or 22" LPO wheels. Upgradeable to (QDS) 265/65R18SL all-terrain, white outlined letter tires or (NZM) 20" Polished aluminum wheels with (QAE) 275/60R20SL all-terrain, blackwall tires. 
 

On Elevation (3SB version)  -  Requires 4WD model and AT tires. Includes (QAE) 275/60R20SL all-terrain, blackwall tires and (NQH) 2-speed transfer case. Includes (N10) dual exhaust. Included with (RFX) X31 Off-Road and Protection Package. Not available with (L3B) 2.7L Turbo engine, (NHT) Max Trailering Package or 22" LPO wheels. 
 

On SLT -  Requires 4WD model, and AT tires. Includes (NQH) 2-speed transfer case, (XCK) 265/65R18SL all-terrain, blackwall tires and (N10) dual exhaust. Included with (RFX) X31 Off-Road and Protection Package. Not available with (NHT) Max Trailering Package or 22" LPO wheels. Upgradeable to (NZM) 20" Polished aluminum wheels with (QAE) 275/60R20SL all-terrain, blackwall tires.

 

 

X31 package not available on Elevation (3VL version),  AT4 or Denali. 

(but some if the X31 items are included on the AT4/Denali)

 

JHD std on AT4/Denali, not available on Elevation (3VL version)

NZZ std on AT4, not available on Denali or Elevation (3VL version)

K47 std on AT4/Denali, not available on 3VL elevation