Well, add me this debacle! 2014 Sierra w/ 106k mi - original owner Just completed the DIY route. Total cost was about $150 and about 5 hrs of labor (1.5hr of that was vacuuming system and holding). I took my time watching the video posted and following step by step. Some observations in my journey; Went through two condensers, first one was bent. Luckily Amazon offers easy returns. Like many I received a silver/bare color but installed anyway- Honestly can't tell much difference. Take note to your elevation, this may be a reason why you cannot obtain a 30inhg (500microns) vacuum. I am at about 2650ft above sea level and could only hit 28inhg. Unless it was my cheap harbor freight gauges/pump... Most importantly it held. Be very careful when tightening down Hi/Lo lines, you can easily overtighten. Add about 2 ounces of Dexron VI tranny fluid actually inside upper cooler before installing On a 1500, 0.6kg of coolant is needed. Translates to 21.1 ounces, or almost two (12) ounce cans. I couldn't figure out an easy way to add PAG46 oil, after vacuum, so it might be wise to add first. Someone may chime in on this. Sent from my SM-T860 using Tapatalk