Dash harness over or under
Melting Slicks
Joined: Apr 2007
Posts: 3,189
Likes: 111
From: Tolland CT
What year?
I had a 73 which routed the harness over the speedo and tach.
My 70 is an earlier build, harness routed under the speedo and tach.
According to the assy manual. the routing was changed on 7-2-1970.
I found if the routing isn't right it makes it tougher to get the panel to seat as it should.
May also run the risk of wiring rubbing on a metal edge.
I had a 73 which routed the harness over the speedo and tach.
My 70 is an earlier build, harness routed under the speedo and tach.
According to the assy manual. the routing was changed on 7-2-1970.
I found if the routing isn't right it makes it tougher to get the panel to seat as it should.
May also run the risk of wiring rubbing on a metal edge.
Team Owner
Joined: Sep 2006
Posts: 31,225
Likes: 4,312
From: Westminster Maryland
Hi Skip,
If you decide to run the harness above the tachometer and speedometer it needs to dip down between the two so it doesn't get pinched against the cast-iron brake and clutch bracket.
When the factory changed the routing a large clip was added to the back of the tach to hold the harness down safely.
Regards,
Alan
If you decide to run the harness above the tachometer and speedometer it needs to dip down between the two so it doesn't get pinched against the cast-iron brake and clutch bracket.
When the factory changed the routing a large clip was added to the back of the tach to hold the harness down safely.
Regards,
Alan
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Melting Slicks
Joined: Apr 2007
Posts: 3,189
Likes: 111
From: Tolland CT
Seems early 70 and older routed under the speedo and tach. Later 70 and newer went over?
Wonder where the vendors got copies of the assy manuals. Seem to be different revisions out there..
Thread Starter
Burning Brakes
Joined: Jul 2008
Posts: 914
Likes: 10
From: Brooklet Ga.
Thanks guys this has helped a ton I got the fuse block back in with the harness and got the steering column back in and will start running the harness in place tomorrow night. I was set back a week when they sent me an engine harness for an automatic and my car is a 4 speed and I wanted to wait till I had all 3 harnesses before I started.