Might be some confusion on your quote of me. The GMT800 and the GMT900 do not share the exact same chassis, especially in the 2500 and above. Not the frame specifically, but all the associated parts - brakes, trans, shocks, etc - the entire “chassis.” I was referencing my 2007 GMT800 Classic 2500HD the last and best of the GMT800. It shares almost nothing with the GMT900. 2007.5-2014 is the GMT900 HD vehicle with some nice upgrades in 2011 (2006+ is GMT900 1500 class) As a life long Chevy guy (and Dodge) I despise the GMT900 interiors as a whole, the exterior door handles, the engine issues, etc, etc. My truck was built in the USA, not a huge deal, but something I considered as the south of the boarder Dodges and Chevy’s seem to have quality issues. Now granted all manufacturers have quality issues and the GMT800 has its known weaknesses, but they are minor in my opinion and mainly are the result of service and Maintenance neglect. Chevy/GM screwed up and the best thing that can be said of the GMT900 was the the Transmissions and Diesels up until the 2009 plus range. The Brakes are great on a 900 as well. 4 wheel disc and less ABS issues. But alas, I made my choice for an 800 based on parts cost, easy DIY on almost every aspect. Simple computers and a host of other reason. Not trying to crap on this thread and my apologies if I am completely wrong, but my shared opinion was only relating to the last year GMT800 HD trucks. Now the 2015’s GMT K2xx are sweet, huge improvements, especially the 6.2. Great interiors. Love them, just not the price and a lot of “nanny parts/computers.” I cannot DIY as well. Sent from my iPhone using Tapatalk