Max trailer package

[Alec DiAstra]

So I just got my 2015 Silverado and was looking over the build sheet (supplied by the dealer). My truck has the following options
Z85 Heavy Duty Suspension

Z80 Locking rear diff
KNP HD Aux Trans. cooling

JL1 Trailer brake controller

Z82 trailer equipment package

 

The only thing that I can see that might make this NOT the max trailering package is the 3.42 rear axels (instead of 3.73) is this correct? 

[shane.lawrence.311]

Need to look for NHT RPO code...that's the max tow PKG

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[Alec DiAstra]

So I know I dont have it, im just wondering the actual difference between Max trailering and what I have. Is it only gear ratio? 

[dsatwork]

• Automatic locking rear differential – This forces both of the rear wheels to turn in unison regardless of traction. In practice, it helps to keep larger loads under control.
• Handling/Trailering Suspension Package – Special refinements to the suspension ensure that a heavy trailer does not lead to a turbulent drive.
• Enhanced cooling radiator – The extra stress that tow loads put on the engine is compensated for with extra cooling from the radiator.
• Revised shock tuning – This keeps the size and weight of tow loads from jarring the vehicle pulling them.
• Heavier duty rear springs and increased RGAWR – The rear-end of the vehicle is beefed up to create a stronger link between the truck and the trailer.
• 9.76″ rear axle – This is used to boost pulling power.
• Integrated trailer brake controller – St. Augustine drivers can tow safely when the trailer brakes are integrated into the cabin of the vehicle.
• Trailering Equipment – All models with this package equipped come standard with trailering equipment like a tow hitch.

[Alec DiAstra]

That does not help me without option codes. 

[gmckenzie]

3 hours ago, Alec DiAstra said:

So I know I dont have it, im just wondering the actual difference between Max trailering and what I have. Is it only gear ratio? 

No. The rear end is slightly larger (9.76") and the rear springs are different. Give a greater RGAWR than just the Z85. Payload will be more with the NHT (mine is 2015 lbs). These are things that can't be optioned without the NHT.