Author Topic: 67 M15 floor shift  (Read 1110 times)

67conv6cyl

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67 M15 floor shift
« on: February 25, 2014, 11:02:53 PM »
I need help, I am trying to restore this convertible 6 cylinder car to a very high level (I know I know) It has the original 3 speed trans, when I bought car the original floor shifter was sloppy hard to get in gear, so I replaced it with Hurst after market, 23 years later I want everything original so I got out old shifter and bought another shifter like it on eBay just to get stabilizer rod and now I am trying to get the right linkage levers for M15 Saginaw trans that will work with my back up switch. does any body have a correct picture of these AIM only shows M13 trans........Paul

JoeC

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Re: 67 M15 floor shift
« Reply #1 on: February 26, 2014, 04:42:53 PM »
I have boxes of the Muncie shifter parts and I know some are for 3 speed but it had to ID the parts when they are all sitting in a box.

 I have the trans levers for a 3 speeds because I had some 3 speed shifters
The lever for 1st and Rev is longer and has the small hole for the rev light rod

big iron

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Re: 67 M15 floor shift
« Reply #2 on: February 26, 2014, 06:46:07 PM »
Are you sure the 3 speed Saginaw came with a stabilizer rod? The 1967 Chassis Service Manual has picture on page 7-7 and it does not have the rod but on page 7-15 it shows HD 3 speed BW and it has the rod. Also shows back up sw. on trans on page 12-19 fig. 30.
Bob

67conv6cyl

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Re: 67 M15 floor shift
« Reply #3 on: February 26, 2014, 07:13:54 PM »
I am not sure maybe that's why the one I had did not have one, I just thought that it was missing. Thank you, I did not think of looking in service .......Paul

big iron

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Re: 67 M15 floor shift
« Reply #4 on: February 26, 2014, 08:06:46 PM »
Paul,
Could you verify the main case casting # for me. I have it on file as 3859986 but it could be 3858986. Also have 3858992 as the side cover but it could be 3919365, your help would be appreciated.
Bob

67conv6cyl

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Re: 67 M15 floor shift
« Reply #5 on: February 26, 2014, 10:19:36 PM »
Bob, main case casting # 3858986, with cast date of  C 23 7, side cover looks like 3919385.

big iron

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Re: 67 M15 floor shift
« Reply #6 on: February 27, 2014, 12:08:59 AM »
Paul,
Do you have the 2.85:1 or 2.54:1 first gear? Your side cover 3919385 (3919365 ?) is  2nd. design.
Thanks.
Bob

67conv6cyl

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Re: 67 M15 floor shift
« Reply #7 on: February 27, 2014, 01:25:36 AM »
It may be 3919365 I am not sure if its 2.85:1 or 2.54:1, how can I tell?

big iron

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Re: 67 M15 floor shift
« Reply #8 on: February 27, 2014, 01:52:10 AM »
If the trans. is out of the car and in 1st gear count the number of turns the input shaft makes for 1 revolution of the output shaft. Example 2 and 1/2 turns input shaft and 1 turn output shaft = 2.54:1. This is ball park but close enough.

67conv6cyl

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Re: 67 M15 floor shift
« Reply #9 on: February 27, 2014, 02:05:08 AM »
Bob, Trans is hooked up to engine,  however drive shaft is not hooked up to trans. I can start engine and put in gear is there another way to tell by stamping maybe?, There is a faint yellow factory ink stamp on trans.

big iron

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Re: 67 M15 floor shift
« Reply #10 on: February 27, 2014, 02:21:37 AM »
Will be harder to do but you can turn the flywheel by hand or by the crank bolt if it has one. Remove spark plugs .