im willing to bet if you thought that car sucked, you'll want to kill yourself during a w body core swap lol

best core i ever changed was my 77 caddy, it was under the wiper cowl, took all of 4 bolts and maybe 15 minutes to change standing at the fender lol aka cake job.

i thought my core was leaking in my regal, so i took it out and found it to be ok, so i put it back in, took 4 hours. same set up as a gp.