Bosethus68

I have searched the forum for most of the info I'm looking for and have either found mixed or old information, so experience based information or suggestions are greatly appreciated. 2018 1500 Z71 4X4 , 72,****** Miles , 5.3-6speed-3.42 , 2.5in Front Level, 285/65r18 M/T's Will have the truck in my shop in the next week or two for some normal service, a few repairs and some upgrades/mods. -Transmission/Fluid - I'll be doing the "Pill Flip" because I work all over Texas/Louisiana and pull a camper. Hoping to extend the transmission/torque converter's life. Should I change my transmission fluid and filter while I'm doing this? Fluid and Filter Brand or Part Number? Cost/Tools/Time/Ability are non-issues, I've seen so many mixed reviews on this topic. I have used 4WD 5-6 times. Should I change the fluid in the transfer case if I change the ATF and if so, what to replace it with? -Rear Shocks - I'm pretty sure I killed the rear Rancho's when I first pulled my camper on some lovely Louisiana highways. I now have helper bags on the rear to pull the 8000lbs camper. I ordered a pair of 5100 Bilstein's but did not take the camper into consideration. Will these survive with the bags? If not, give me your suggestion. I only pull the camper 3-4 times a year. -After Market Remote Start - Apparently the Texas Panhandle gets fairly cold and I do not have a factory remote start. I have looked at Start-X, 12 Volt Solutions and iDatastart. I'm fairly decent at running one of these late model laptops, I can read a schematics and I can hard wire if needed. What I don't want is a sperate key-fob and I don't want to have to go to a dealership for a software update. What do yall have good experiences with? Lastly, any suggestions on Engine Oil/Filter, Spark Plugs(would you change them at 75,000 miles with the truck already being serviced?), Windshield Wipers &/or Fluid for Icy conditions, Engine Air Filter and Cabin Air Filter Sorry for the lost multi question thread but I assumed it was better than several separate threads/posts. I sincerely appreciate any and all information given and enjoy the forum.