I’ve been having what I thought was leaf springs rubbing and popping. My truck has always done the jerking sometimes when coming to a stop. It now has 111,000 miles plus on it. After searching for the sound of the screeching I decided to pull the drive shaft off and pour dexron vl fluid in the slip yoke. The jerking has stopped and so has the rear end noise. (The transmission jerking is a long going issues with the older model gm trucks…search gm drive line clunk).
Basically the slip yoke needed lubricating. The older models you could just grease them but I was scared to with the newer transmissions. Give it a try you won’t be disappointed.
Are you wanting mood lighting or just entry exit lighting? If mood lighting use an add a circuit and connect to the trailer light power fuse under the hood. This will make the lights come on anytime the headlight/park lights are on.
I personally wouldn’t try to blow it myself. Just try to find a fuse that is rated to whatever your gonna try to power. The add a circuit will only carry so much also... from what you say you want to power they should be fine. I’m not sure about the air horn but you might could just go straight off the battery with an in line fuse in the new power line. Put the inline fuse within 12 inches of the battery though. Take your time and do it right. Don’t burn down your rig trying to do more than the wires can handle...Have fun.
Don’t up the size of the fuse. I would use something that won’t leave you stranded if you were to blow them and not have a spare fuse. (Radio, Heater, etc..). For my LEDs I tied into the trailer running light fuse under the hood so mine would come on when the lights were on. (My leds are mood lighting in the floorboards.) they have a separate switch so I can turn them off if I’m tired of them.
I removed my rear blocks and just used washers on the ubolts. No money spent. Ended up putting blocks back and doing 1.5 inch spacer one the front. Sometimes it looks level, sometimes nose down, sometimes nose high. To me it’s as close as I’m gonna get and still be able to pull a trailer some.
OEM NEW Illuminated Bow Tie Emblem Kit Front Rear Black 2017 Silverado 84129741 https://www.amazon.com/dp/B01N6BBWSF/ref=cm_sw_r_cp_api_i_TSW5DbEZ9X37K
this is the one I got. I have a 2018
came with the harness and all. It was oem equipment.