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  1. Just my opinion from years of GM truck ownership, don't do it. The factory exhaust will literally last forever, aftermarket exhaust systems like Flowmaster will rust out prematurely and your stuck replacing them over and over and there is no performance gained.
  2. 2500's have cheaper registration, higher resale (most SRW 3500's are used commercially and depreciate faster), most common HD vehicle that folks look for, most GM's are the exact same truck minus the upper overload spring, and when I ordered mine in 2012 extended cab short bed was not an option on 3500.
  3. A slight MPG increase sounds realistic over a 6.0, but nothing earth shattering when dealing with a big heavy truck. However the power and torque have increased quite a bit so it should perform better with heavy loads.
  4. You can get tires up to 4080lbs in 18" or 20". 18" tires cost less and the larger sidewall give a smoother ride.
  5. That is what shows just how durable these GM gas engines are, they will rev at 4-5K all day long and keep on going and going. My '12 6.0 has been carrying a 3,200 lb camper for 8 years up and over mountain passes (Alaska, Canada, Montana, Idaho) and never even coughed, it's amazing how it hauls. Transmission temps have always been good to!
  6. This is correct. 12.6v is fully charged for a 12v lead acid wet battery. An AGM battery will read 12.8v. Anything higher is when a charger/alternator is charging it. FYI, 12.3v is 50% charged, anything below 12v is almost unusable and considered dead. Those of us who dry camp with truck campers watch our camper battery voltages.
  7. Centering the steering wheel can be corrected by aligning the front end, ez peezy.
  8. Dura Flap's last forever and look good on a GMC/Chevy and no-drill installation
  9. The companies that made tunes that mattered have stopped, the government moved in on them and they have stopped. Now you'll find things that do little things like throttle response or air intake and exhaust, however the factory systems are monitoring this and make adjustments to offset the benefits. No easy programming left.
  10. Bad CV Joint will make a popping sound, look for grease leaking out of a rubber seal around the joints.
  11. Modern diesels are going through the emissions hell right now that the gassers went through in the 80's and now overcame, so I would say go with a tried and true gasser. Diesels are having all kinds of issues trying to meet new diesel emission standards that costs thousands and you have no way of knowing how long a modern diesel will run healthy (lift pumps, DEF systems, etc). I'd wait another 5-10 years before looking at a diesel unless you absolutely need one.
  12. There is a limit to where larger is better, the larger wide tires are D load rated many times (60psi vs 80psi max), so make sure you look at the load rating not just the size. Many smaller tires have high load ratings, especially when comparing 16" and 17", 17's have almost all been de-rated in load capacity recently for some unknown reason.
  13. The 6.6 is the new larger displacement engine. New transmission will surely follow.
  14. You can't put a rebate on something you don't have. Rebates are to made to move product that they don't want sitting on lots when the new models come out, very few 2020's were actually made due to COVID-19, so I can't see much of a need for rebates. Dealer lots are almost empty up here in Alaska, even the used car lots are empty fields of asphalt. I did see a huge shipment of Buicks show up, but they are probably from China like most of Buicks manufacturing not being in the US (the new Envision is 100% China).
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