Speedo cable grommet - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**rgunlock** · 09-10-2016, 02:57 PM

Where can I find one? It doesn't appear that anyone sells the speedo cable with grommet installed, and a good deal of searching has turned up nothing for the grommet itself for 73-87. Anyone have a source?

**TKCR** · 09-10-2016, 04:03 PM

Do you mean the retainer clip that hold it in place behind the cluster?

If it is, LMC had them.

http://www.lmctruck.com/icatalog/cc/full.aspx?Page=79

Classic Parts http://www.classicparts.com/1969-91-.../#.V9RnaTv89Hg

**rgunlock** · 09-10-2016, 04:38 PM

Sorry, no I should have been more specific. I mean the rubber grommet that goes into the firewall where the speedo cable comes through it.

**TKCR** · 09-10-2016, 04:47 PM

Quote:

Originally Posted by rgunlock

Sorry, no I should have been more specific. I mean the rubber grommet that goes into the firewall where the speedo cable comes through it.

I thought there was a chance that was what you were referring to. Yeah those seem to be hard to find. Do you have your old one, to get size dimensions from?
There is this place that has grommets:

http://www.clipsandfasteners.com/Gro...rial_s/103.htm

**TKCR** · 09-10-2016, 05:21 PM

There is a speedo cable with the grommet on Ebay, if your really in dire need of a grommet. It's off an 84.

**rgunlock** · 09-10-2016, 06:41 PM

Appreciate all of the pointers TKCR. I do have the original grommet, but cut it to get it off of the old cable. It has a metal ring embedded in the rubber, and 3 tangs that look like they hold it to the hole in the firewall. It is too far gone to hold in there now since I cut the metal ring.

The cable is about 5/16" diameter and the firewall hole is about 1". I can probably use a grommet from the site you provided. They have one with a bore diameter of 3/8" and a groove diameter of 1" that may work if I can get it over the fitting on the end of the cable and get it seated in the firewall. The groove is 1/16" so likely to be pretty tight.

**rgunlock** · 09-10-2016, 06:58 PM

Might work??? I can ruin a few trying to make it work and still have 20 left-over

**rgunlock** · 10-26-2016, 09:03 PM

I hate it when a thread ends with things left hanging. So, the grommet shown in the last post actually does appear to work fairly well. It is definately a PIA to install but do-able. Had to do some surgery on one of my punches to be able to force the grommet inner hole open enough to get over the end on the speedo cable. This punch's diameter was just slightly larger than the cable end, so force the grommet (use some lube) all the way up to the fat end and then just slide it over the cable end.

Tash4 · 10-26-2016, 10:01 PM

Thanks for the follow up . I'm up against the same thing, I can get my old one off but no way to put it on the new cable.

Greenlee · 10-27-2016, 05:49 AM

Glad I found this thread. I was never able to find the right grommet for my speedo cable. I bought a whole kit of grommets one time and none of them fit. My cable currently has tape around it to cover the hole.

eric8 · 04-17-2022, 10:27 AM

Quote:

Originally Posted by Greenlee

Glad I found this thread. I was never able to find the right grommet for my speedo cable. I bought a whole kit of grommets one time and none of them fit. My cable currently has tape around it to cover the hole.

Can anyone advise the actual GM part number for the grommet? For a ‘77 c10 specifically. Trying to find one NOS. Thanks.
Posted via Mobile Device

Pontiac1976 · 04-22-2022, 08:57 PM

The last time I got one was at the Dealer they still make then for the GM full Size Vans.(grommet for the speedo cable throw the firewall) I think some where between 2010-2014 GM full Size Vans (grommet for the speedo cable throw the firewall). If I find the bill with the part # I will let you know.

eric8 · 07-27-2022, 11:50 PM

Anyone ever come up with a part number for this? I’ve gone through the GM parts manual but I must not be looking in the right spot

09-10-2016, 02:57 PM	#1
rgunlock Senior Member Join Date: Jul 2009 Location: Tomball, Texas Posts: 1,592	Speedo cable grommet Where can I find one? It doesn't appear that anyone sells the speedo cable with grommet installed, and a good deal of searching has turned up nothing for the grommet itself for 73-87. Anyone have a source? __________________ Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ) 2001 GMC Sierra K2500

09-10-2016, 04:03 PM	#2
TKCR Senior Member Join Date: Oct 2014 Location: Ohio Posts: 6,927	Re: Speedo cable grommet Do you mean the retainer clip that hold it in place behind the cluster? If it is, LMC had them. http://www.lmctruck.com/icatalog/cc/full.aspx?Page=79 Classic Parts http://www.classicparts.com/1969-91-.../#.V9RnaTv89Hg __________________ FB Page for my Seats Belts https://www.facebook.com/73-87-Chevy...9439407476735/ Restoring Seatbelts: http://67-72chevytrucks.com/vboard/s...d.php?t=809750 SOLD My 86 Build:http://67-72chevytrucks.com/vboard/s...d.php?t=654972 Past Restored Bench Seats:http://67-72chevytrucks.com/vboard/s...d.php?t=715398 PayPal link to pay for your items: https://www.paypal.me/TKCR

09-10-2016, 04:38 PM	#3
rgunlock Senior Member Join Date: Jul 2009 Location: Tomball, Texas Posts: 1,592	Re: Speedo cable grommet Sorry, no I should have been more specific. I mean the rubber grommet that goes into the firewall where the speedo cable comes through it. __________________ Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ) 2001 GMC Sierra K2500

09-10-2016, 05:21 PM	#5
TKCR Senior Member Join Date: Oct 2014 Location: Ohio Posts: 6,927	Re: Speedo cable grommet There is a speedo cable with the grommet on Ebay, if your really in dire need of a grommet. It's off an 84. __________________ FB Page for my Seats Belts https://www.facebook.com/73-87-Chevy...9439407476735/ Restoring Seatbelts: http://67-72chevytrucks.com/vboard/s...d.php?t=809750 SOLD My 86 Build:http://67-72chevytrucks.com/vboard/s...d.php?t=654972 Past Restored Bench Seats:http://67-72chevytrucks.com/vboard/s...d.php?t=715398 PayPal link to pay for your items: https://www.paypal.me/TKCR

09-10-2016, 06:41 PM	#6
rgunlock Senior Member Join Date: Jul 2009 Location: Tomball, Texas Posts: 1,592	Re: Speedo cable grommet Appreciate all of the pointers TKCR. I do have the original grommet, but cut it to get it off of the old cable. It has a metal ring embedded in the rubber, and 3 tangs that look like they hold it to the hole in the firewall. It is too far gone to hold in there now since I cut the metal ring. The cable is about 5/16" diameter and the firewall hole is about 1". I can probably use a grommet from the site you provided. They have one with a bore diameter of 3/8" and a groove diameter of 1" that may work if I can get it over the fitting on the end of the cable and get it seated in the firewall. The groove is 1/16" so likely to be pretty tight. Attached Images __________________ Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ) 2001 GMC Sierra K2500

09-10-2016, 06:58 PM	#7
rgunlock Senior Member Join Date: Jul 2009 Location: Tomball, Texas Posts: 1,592	Re: Speedo cable grommet Might work??? I can ruin a few trying to make it work and still have 20 left-over Attached Images __________________ Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ) 2001 GMC Sierra K2500

10-26-2016, 09:03 PM	#8
rgunlock Senior Member Join Date: Jul 2009 Location: Tomball, Texas Posts: 1,592	Re: Speedo cable grommet I hate it when a thread ends with things left hanging. So, the grommet shown in the last post actually does appear to work fairly well. It is definately a PIA to install but do-able. Had to do some surgery on one of my punches to be able to force the grommet inner hole open enough to get over the end on the speedo cable. This punch's diameter was just slightly larger than the cable end, so force the grommet (use some lube) all the way up to the fat end and then just slide it over the cable end. Attached Images __________________ Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ) 2001 GMC Sierra K2500

10-26-2016, 10:01 PM	#9
Tash4 Registered User Join Date: Sep 2016 Location: Pinhook Mo Posts: 120	Re: Speedo cable grommet Thanks for the follow up . I'm up against the same thing, I can get my old one off but no way to put it on the new cable.

10-27-2016, 05:49 AM	#10
Greenlee Registered User Join Date: Jun 2004 Location: El Lago, TX Posts: 1,668	Re: Speedo cable grommet Glad I found this thread. I was never able to find the right grommet for my speedo cable. I bought a whole kit of grommets one time and none of them fit. My cable currently has tape around it to cover the hole.

04-22-2022, 08:57 PM	#12
Pontiac1976 Registered User Join Date: Oct 2015 Location: Ottawa, Ontario, Canada Posts: 752	Re: Speedo cable grommet The last time I got one was at the Dealer they still make then for the GM full Size Vans.(grommet for the speedo cable throw the firewall) I think some where between 2010-2014 GM full Size Vans (grommet for the speedo cable throw the firewall). If I find the bill with the part # I will let you know. __________________ 1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.

07-27-2022, 11:50 PM	#13
eric8 Registered User Join Date: May 2013 Location: Utopia Posts: 215	Re: Speedo cable grommet Anyone ever come up with a part number for this? I’ve gone through the GM parts manual but I must not be looking in the right spot



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