PSI Harness firewall hole

[terrylgreenjr]

Im installing the harness this week and was woundering where everyone in drilling the hole in the firewall to instal the harness. I was thinking the best place for the ECM is right under the radio inside the cab. Im open to other locations just wanting to see what everyone else is doing

[Crash_OK]

This is what I did with mine..

http://67-72chevytrucks.com/vboard/s...&postcount=388

[terrylgreenjr]

Thats close to where I was thinking but my truck is a 77 so the dash is different, I was wanting to tuck it closer to the floor hump away from the pedals

[TR65]

Here is how I ran mine thru, a little higher up beside the brake booster. I used a Military bulkhead connector so I could pull the engine easily without disturbing anything in the cab.

TR

[mooseknuckles]

my 86 already had a 2" hole behind the motor, ran the wiring through it and mounted the PCM behind the glove box.....