I guess you guys think I am dumb, but this is the first 57-59 GMC LCF for me...
I bought aftermarket rubber sleeves to connect the 2 heater assys. together and the one for the fresh air connection. Those things fit tight!! It was all I could do to just get one on while on the workbench. I had to order ones for a pickup, they sure seem too small. It is the deluxe heater.

Anyone have tips for connecting those things while under the dash, trying to mount the 2 heater assemblies?

Last edited by Old GMC Gold; 11/24/2013 1:19 AM.
57 GMC LCF 370
55 John Deere 40-W
59 John Deere 430-W
2000 GMC 4x4
56 John Deere 420-W
Pix on Photobucket