Be reading post here for some time. Haven’t seen any trolls. I get the impression folks are here for their genuine love of these vehicles. I bought a 2006 Yukon XL Denali to replace my B3000, big upgrade. This is my 1st AWD. I have a 68 K20 I-6 292 4 speed, use to have a 69 K5 350 auto. I wasn’t...