[lucky1]

Hi, replacing the speedometer cable. Can anyone advise the the the proper

Routing ?????

Tks.

[lucky1]

Discovered it's a Chev. Trans. With drive gear on opposite side. 😳

[Tom Vaught]

Doug Nash used to offer a adaptor for his trans, (Chevy speedo gear location).

Doug went to Heaven years ago but maybe Leonard Long still has some of the Adaptor Cables that cross over the trans tailstock and connect to the Pontiac speedo cable.

Tom V.

[Peter Serio]

I would think if you say, for example, you imagined your car's cable as a '65 Chevelle or El Camino. I think that cable would be long enough. The Chevrolet Muncie 4 speed cars; their cable exits out of the passenger side so the cable needs to be longer. How much longer I do not know, but it has to cover more area to get all the way up to the dash.

[jarhead]

I looked up a 65 Chevelle application in the Ground Up web site. - https://www.ss396.com/chevelle/FCC-2...elle&year=1965

They offer an 83 inch and a 64 inch cables. The notes for the 83 inch indicate - "This cable is intended to screw into the passenger side of the transmission".

[Rich-Tripower]

In a Chevelle (I have two 65s) the cable runs under the dash and goes through the floor on the passenger side of firewall near the beginning of the transmission hump. It then is a fairly straight shot to the transmission. But if you try to run the speedo cable from a hole in the firewall on the driver's side you will either run out of cable (even with a correct Chevelle long cable) or have to take bends that are too sharp. The trick is to run the cable through the floor on the passenger side.

Or, you could just locate a tailshaft housing with the speedo cable connection on the (wrong) driver's side. To me, the Chevelle version makes more sense as you can easily get at the speedo gear housing without mucking with the shifter or crossmember. If you'd like I can scan a page from the Chevelle assembly manual showing where to place the hole in the floor pan and how the cable should be routed.

[lucky1]

Originally Posted by Rich-Tripower

In a Chevelle (I have two 65s) the cable runs under the dash and goes through the floor on the passenger side of firewall near the beginning of the transmission hump. It then is a fairly straight shot to the transmission. But if you try to run the speedo cable from a hole in the firewall on the driver's side you will either run out of cable (even with a correct Chevelle long cable) or have to take bends that are too sharp. The trick is to run the cable through the floor on the passenger side.

Or, you could just locate a tailshaft housing with the speedo cable connection on the (wrong) driver's side. To me, the Chevelle version makes more sense as you can easily get at the speedo gear housing without mucking with the shifter or crossmember. If you'd like I can scan a page from the Chevelle assembly manual showing where to place the hole in the floor pan and how the cable should be routed.

As they say a picture is worth a thousand words, Lol
If it would be easier, my Email is cbrooks971@gmail.com.

Thanks again, sure looks like the way to go.

[lucky1]

Looked at Chevelle speedometer cable ((84").

The ones I saw only had a screw on collar on the trans side of the cable ?????

Found a 83" cable with collars on both ends, would 1" shorter be an issue ????

Thank you.

[Murf]

Originally Posted by lucky1

Looked at Chevelle speedometer cable ((84").



The ones I saw only had a screw on collar on the trans side of the cable ?????



Found a 83" cable with collars on both ends, would 1" shorter be an issue ????



Thank you.

Shouldn’t be. I have Chevy trans in mine. I believe Ames sells + lengths or Rock Auto lists the lengths in the descriptions.


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[Peter Serio]

The hole for the speedometer cable in the Pontiac A body car is in the floorpan, on the driver's side. Here is a drawing from a kit to install backup lights in a '64 Lemans or GTO. In the drawing, they show an arrow; you can see part of the speedometer cable for a Lemans or GTO with a Muncie 4 speed transmission.


All of the '64-70 Buick, Olds and Pontiac (A body) Muncie 4 speeds had the cable exit out from the Driver's side of the tailhousing.

Not sure if even an 84" long cable could come from around a Chevrolet Muncie up thru the factory drilled hole in a GTO. It would probably have wrap around and go underneath the bell-housing.

[Rich-Tripower]

Here is a page from the 65 Chevelle Assembly Instruction Manual showing how the speedometer cable is to be installed in a 65 Chevelle for the 4 speed (cable attaching on the passenger side). The grommet used is a simple rubber o-ring grommet for sheetmetal. You need to get the grommet onto the cable before trying to insert the grommet into the sheet metal.

[lucky1]

Thank you for the Pic. 👍

[Murf]

I ran mine over the engine/ transmission where the trans meets the bell housing & in the stock hole in the floor pan. I think I used on 8 inches longer than stock. I could get a pic if it would help.


Murf


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[lucky1]

Yes please, pic worth is worth a thousand words.

[Murf]

Originally Posted by lucky1

Yes please, pic worth is worth a thousand words.

Especially mine words!





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[Murf]

Pics are from passenger side to drivers side.



Page 299 of Ames catalog. It gives the lengths so you can order for the year that wherever you like. I think I used 63.5 inch one but I’m not sure.

Good luck
Murf



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[Murf]

One from under the hood. Cable is just above the adjustable prop valve knob. Hope some of this helps. It’s hard to get a good pic.




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