Ron,
I believe it should be a 61 inch one. It may be best to use a wire and follow the route from the spedo to the transmission connector. Again...61 should do it.

Kev

 

Yes, I was thinking of this method of measurement.....I think I seen a 61" cable at National Parts Depot.....5 feet, from the rear of the tranny to the rear of the dash, seems about right and the other one, which is around 7 feet, seems like it would be too long!.....Thank You!:thumbsup:

 

Ron -

Is it a Camaro Muncie (speedo drive on passenger side) and is the car an original Muncie car (speedo cable exits the firewall near the distributor, instead of down by the fuse box)?

The longer cable is for an original Muncie car with the speedo drive on the passenger side of the tail shaft. The extra length is so it can come out of the speedo, through the firewall and around the top of the tunnel, and then down the passenger side of the floor to the trans.

 

Eric.....I don't know the complete history of the car.....All I can tell you is that this Muncie has the speedo drive on passenger side and the speedo cable exits the firewall down by the fuse box....So would the correct length for my application be either the 61" or 63"??

 

Agree with Eric, my 68SS M21 car has the long cable 83 inches. 68 with Saginaw trans is 63 or 61 inches, 68 with Muncie is 83 inches. Keep in mind as he said it must have come originally with a Muncie so the entrance through the firewall is in the proper location to use the above lengths. A Saginaw equipped car that has been changed over to a Muncie may not have the correct feed through location in the firewall.

 

You need a longer one for that. The 83" is probably about right.

 

I just replaced the cable ***'y on my 68 Camaro, 350 with Muncie, pass side speedometer drive. The local parts houses only sell a 63" replacement cable. It will work, but is tight. Both Classic Industries and Rick's sell a 69" cable for the 68 with 4 speed and that would be a much better choice.

 

Does your cable exit by the fuse block, or to the inside of the wiper motor at the edge of the tunnel opening which is the "traditional speedo cable location for Muncie?

 

I happened to bring up www.partsamerica.com There are 21 different speedometer cables for the 68 Camaro.....I guess the 63", PN CA3002 is the correct cable for my application and it only costs $7.79!

http://www.partsamerica.com/Product.../ProductList.axpx?SearchFor=Speedometer+Cable&PartType=683&PTSet=A&CategoryCode

 

Can anyone tell me a good way to tell on a 67 if it was originally a 4 speed car? Where would the speedo cable go through the firewall? Same as the 68?
I have a 67 that for sure is going to have an M21 in it now, so what's the best length, and best route for that cable to take?

Brian

 

I just installed a 63" in my 68 coupe, equipped with a muncie.....The speedo gear is on the passenger side of tranny and the cable enters the firewall below the fuse block.....I didn't get a chance yet to hook up the other end to the instrument panel.....I still don't know for sure if it's routed correctly because it's pretty close to the clutch shaft but I think it should be OK!

 

I wouldn't predict a long and happy life for a speedo cable to a passenger-side speedo Muncie from the standard speedo cable hole below the fuse block; the cable for that transmission goes through the firewall just below and inboard of the wiper motor, as shown in the M20 section of the Assembly Manual. Nobody makes a correct cable for the routing below the fuse block to a passenger-side speedo Muncie, as no Camaro was ever built that way. :thumbsup:

 

Really old post, but new reply just to offer my experience - 10 years later there's still not a definitive answer. On a 68 with a Muncie M20 (original Muncie, speedo exit through FW by the windshield wiper motor). I had a kinked cable that had to have been the long 83" version - had at least an extra 12" if not more in play, which I think caused the kinking. After reading this and another thread, I landed on trying the 69". Regardless of what was supposed to be in there, it fits pretty good. $37 out in CA at a local speed shop, including the grommet (buy it with the grommet, so much less of a headache!).

 

I had a hard time trying to find the answer also. I completed my Muncie conversion today. My car was originally a 327(L30) with a Powerglide. The production speedometer cable was routed through the firewall below the steering column (non-Muncie hole) to the driver's side hook up. I removed and measured it at 61". I drilled the firewall and rerouted through the Muncie hole (closer to the center of the car, behind the distributor and coil), over the back of the block and bellhousing to the passenger side of the Muncie. It fit perfect. The toughest part was actually drilling the hole. I couldn't drill it from under the dash. I removed the distributor and coil/bracket assembly and was able to fit a compact drill with a step bit.

FWIW, Mike.