don't recall exactly the mounting, but maybe weld nuts on the engine side of the firewall - the mount holes in the tab are only about an inch apart .... don't think position is critical unless you're picky about originality, which will be tough at any rate with the GMC-Chev conversion smile

Bill



Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics