[snowbuzzard]

Old thread, same request so thought I'd renew this one.

I need a wiring diagram specifically for an 87 chev 4x4 with dual tanks, if it even exists.

All kinds of one offs here, mostly TBI on the 73-87 body style.

I'm donoring a cab from a 2 wheel drive single tank to a 4 wheel drive dual tank system and need to know the wiring for the tank switch and where to tie in the 4wheel indicator light.

I would love to use the old wiring harness as an indicator, but the dingbat before me burnt it and then proceeded to cut it all out and throw it away.

Dummy me got the donor truck with the promise it had dual tanks, and I was too stupid to check until now..ugh. Live and learn. Any help would be appreciated guys.