2015 Silverado 3500 & 19000lbs

travelnutz wrote:
Huntindog,

Qoute:

"It's been a couple of years but, it was brought up about how Ford and Dodge came up with their power numbers vs. GM.

GM was the ONLY one to rate the power by the stringent SAE method.
I forget the particulars, but basically think peak vs. continuous power. That explains how a lower rated truck such as the GM can win these contests."

BINGO!!!! You win 1st place!

And if the engine is stripped on a test stand or the output measured at the drive wheel!

Where's this info coming from? Motor Trend reports that all three HD's still use their own in house numbers for 2015, not the J8207 rating your implying on this HD thread.