The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- The 1973 - 1991 Blazers, Jimmys, and Suburbans Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=37)

- - Factory tach harness firewall location (https://67-72chevytrucks.com/vboard/showthread.php?t=648253)

cst204x4

11-01-2014 01:15 PM

Factory tach harness firewall location

Anyone know the CORRECT location for routing factory tach harness through firewall on 1981

tobytuttle

11-01-2014 01:22 PM

Re: Factory tach harness firewall location

Should be on the left side of FW through the rubber plug area, also them 1980/81 style tach with the newer font, has always been a rare find for me, i have installed many in the 83-86 style truck, they look great usually found most of them in the 80 models (a few in 81's), with the birth of the font change.

cst204x4

11-03-2014 10:15 AM

Re: Factory tach harness firewall location

1 Attachment(s)

Thanks for the reply the cluster I have has a factory harness with a rubber boot/grommet looks to require about a 3/4 inch hole.

All times are GMT -4. The time now is 04:05 AM.