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#1 |
Senior Member
![]() Join Date: Jan 2012
Location: corunna michigan
Posts: 2,000
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Factory tach harness firewall location
Anyone know the CORRECT location for routing factory tach harness through firewall on 1981
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![]() 1972 cutlass owned since 1984 1972 cutlass conv 1970 Cutlass conv 1981 chevy shortbox 1986 grand national 2004 2500HD Crew Cab 66,000 miles |
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#2 |
Registered User
Join Date: Nov 2008
Location: Anchorage Alaska
Posts: 412
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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.
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70 SS 454 Monte 69 355 C-10 Shortbed 90 454 Crew dually 4x 76 454 Dually 2x 75 454 K5 77 468 Kona |
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#3 |
Senior Member
![]() Join Date: Jan 2012
Location: corunna michigan
Posts: 2,000
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Re: Factory tach harness firewall location
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.
__________________
![]() 1972 cutlass owned since 1984 1972 cutlass conv 1970 Cutlass conv 1981 chevy shortbox 1986 grand national 2004 2500HD Crew Cab 66,000 miles |
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