AC upgrade on 73 Sport

supertruck said
...new stock evaporator. The guy said I had to replace my new evaporator with one of theirs.

no you don't. did my 73' and left everything south of the firewall stock. works awesome. i used the Bouchillon brackets and bought everything piece meal from here. also had a mobile A/C repair guy come to the house to run the lines and charge it.