Author Topic: Speedometer cable grommet  (Read 680 times)

DONCZ28

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Speedometer cable grommet
« on: March 16, 2025, 01:14:35 PM »
How are you guys replacing the speedometer cable firewall grommet ,when the original is destroyed. I want to use my original cable.

169INDY

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Re: Speedometer cable grommet
« Reply #1 on: March 16, 2025, 08:16:54 PM »
 1967/68, I could NOT see a method of getting a Repop Grommet over the threaded end fittings w/o cutting a full slit.
I wonder if the encased steel retainers will fit over a smaller speedo end on a 69 car.

I bought a repop. (67/68)
Jim
68 SS/RS L35 Th-400 LOS
69 Pace Car L48 Th-350 LOS
68 Z28 M21 LOS

althomas55

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Re: Speedometer cable grommet
« Reply #2 on: March 17, 2025, 01:35:56 AM »
For lack of any other method I've had to slit everyone I've ever changed ! Never had much luck getting any to fit very well !
68 RS clone 468/4spd

DONCZ28

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Re: Speedometer cable grommet
« Reply #3 on: March 17, 2025, 03:54:57 AM »
I figured it out. Clamped my 69 cables speedo end in a vice at the metal base. I took a socket that has an Allen wrench on it's  end . This socket at it's base matches the diameter of the cable end. I stacked the socket on the cable end. I secured it with a wrap of duct tape. The socket tapers at the base of the Allen wrench. Basically your creating a tapered cone. Apply a lubricant and push it right down over the cable. Could not believe how easy it was! The rubber is very strong and forgiving. No special tool needed!





Delco115

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Re: Speedometer cable grommet
« Reply #4 on: March 17, 2025, 11:45:18 AM »
How about posting some pictures of your unique method. We'd like to see your solution in action!! Thank you.

Mike S

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Re: Speedometer cable grommet
« Reply #5 on: March 17, 2025, 05:50:44 PM »
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

Dave69x33

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Re: Speedometer cable grommet
« Reply #6 on: March 19, 2025, 04:01:02 PM »
When I restored my '69 Z28 and replaced the speedometer cable, I had a conical tool made out of nylon rod material very similar in shape to the one pictured, and used bearing grease help allow the grommet to push over the tool and metal fitting on the cable.  The use of an long open socket that is necked down may also work as DONCZ28 suggested. When I get home this evening after work, will look for picture to post of my tool. If I recall correctly, I have a sketch of my tool design I will also post.

Dave69x33

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Re: Speedometer cable grommet
« Reply #7 on: March 19, 2025, 09:49:59 PM »
I cannot find my tool design sketch used to make the tool to share, but here are a few pics of my tool to give you an idea how it is designed and works.

 

anything