66 speedometer cable routing and grommet install - The 1947 - Present Chevrolet & GMC Truck Message Board Network

msg · 01-11-2021, 04:53 PM

From the kit I have of firewall grommets that aren't identified I am pretty sure this is the speedometer grommet. I assume you cut a slit in it and separate the grommet and slide the cable through and pop the grommet into the hole in the floor? Its been a while since I took this apart and this is one of the things I didn't photograph the removal of. I think the clip on the outside of the firewall will hold the cable once I have it installed?

**The Rocknrod** · 01-11-2021, 06:16 PM

That's what I did.

msg · 01-12-2021, 10:11 AM

Thanks Rocknrod, I made the cut added some silicone and slid the cable and grommet in place. Is the clip on the outside firewall meant for the speedometer cable?

**The Rocknrod** · 01-12-2021, 11:59 AM

The clip?

msg · 01-12-2021, 01:28 PM

that little j looking clip thats attached to the outside firewall, under the other hole to the left of the speedometer plug. It may be for electrical wires?

**The Rocknrod** · 01-12-2021, 01:29 PM

That's not for the Speedo Cable.

**Riverstory** · 01-12-2021, 02:12 PM

That clip is for your brake/parking/backup light cabling that run to the back

msg · 01-12-2021, 03:02 PM

Thank you both!

01-11-2021, 04:53 PM	#1
msg Registered User Join Date: Feb 2013 Location: GA Posts: 1,313	66 speedometer cable routing and grommet install From the kit I have of firewall grommets that aren't identified I am pretty sure this is the speedometer grommet. I assume you cut a slit in it and separate the grommet and slide the cable through and pop the grommet into the hole in the floor? Its been a while since I took this apart and this is one of the things I didn't photograph the removal of. I think the clip on the outside of the firewall will hold the cable once I have it installed? Attached Images __________________ Progress thread for my 66 http://67-72chevytrucks.com/vboard/s...d.php?t=623848

01-11-2021, 06:16 PM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: 66 speedometer cable routing and grommet install That's what I did. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

01-12-2021, 10:11 AM	#3
msg Registered User Join Date: Feb 2013 Location: GA Posts: 1,313	Re: 66 speedometer cable routing and grommet install Thanks Rocknrod, I made the cut added some silicone and slid the cable and grommet in place. Is the clip on the outside firewall meant for the speedometer cable? Attached Images __________________ Progress thread for my 66 http://67-72chevytrucks.com/vboard/s...d.php?t=623848

01-12-2021, 11:59 AM	#4
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: 66 speedometer cable routing and grommet install The clip? __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

01-12-2021, 01:28 PM	#5
msg Registered User Join Date: Feb 2013 Location: GA Posts: 1,313	Re: 66 speedometer cable routing and grommet install that little j looking clip thats attached to the outside firewall, under the other hole to the left of the speedometer plug. It may be for electrical wires? __________________ Progress thread for my 66 http://67-72chevytrucks.com/vboard/s...d.php?t=623848

01-12-2021, 01:29 PM	#6
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: 66 speedometer cable routing and grommet install That's not for the Speedo Cable. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

01-12-2021, 02:12 PM	#7
Riverstory Registered User Join Date: Aug 2020 Location: Lake Havasu City AZ Posts: 142	Re: 66 speedometer cable routing and grommet install That clip is for your brake/parking/backup light cabling that run to the back

01-12-2021, 03:02 PM	#8
msg Registered User Join Date: Feb 2013 Location: GA Posts: 1,313	Re: 66 speedometer cable routing and grommet install Thank you both! __________________ Progress thread for my 66 http://67-72chevytrucks.com/vboard/s...d.php?t=623848



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