Saginaw to Muncie conversion - Team Camaro Tech
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post #1 of 6 (permalink) Old Apr 8th, 02, 05:00 PM Thread Starter
 
Join Date: Jan 2002
Posts: 395
I'm changing my '69 saginaw 3 speed to a Muncie M20 4 speed.....

What else do I need to change to do this swap ??

I have a 12.5 inch flywheel and 10.4 inch clutch.... can I still use this with a Muncie ??

I have the Saginaw bellhousing..... do I need to change that ??

I know I have to change the shifter etc....

What else am I missing ??

When I decided to do this, I didnt think of all the "smaller" parts I would have to change !!!!!
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post #2 of 6 (permalink) Old Apr 9th, 02, 11:52 AM Thread Starter
 
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I know someone out there has done this........

I'm looking for those "small details" that get overlooked...
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post #3 of 6 (permalink) Old Apr 9th, 02, 12:56 PM
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Jim
 
Join Date: Mar 1999
Location: Randlett, OK USA
Posts: 183
As long as the muncie you're using has the coarse splines on the input shaft, you can use the clutch disk that you have. The length is the same, the bellhousing is the same so all you should have to supply different is a 4 speed shifter.
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post #4 of 6 (permalink) Old Apr 9th, 02, 01:25 PM
 
Join Date: Apr 2002
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WHERE ELSE DID I SEE THIS EXACT, SAME, WORD FOR WORD QUESTION????

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Tom Parsons
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post #5 of 6 (permalink) Old Apr 9th, 02, 03:19 PM
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Gene
 
Join Date: Nov 1999
Location: Dallas, Texas
Posts: 1,659
I converted my 3-speed Saginaw to a Muncie and used the original bellhousing, clutch linkage, and tranny crossmember. I upgraded the flywheel and clutch, but I think cam67 is correct, the Muncie should be a direct swap.

While you have everything apart, I would replace the clutch fork pivot ball that screws into the bellhousing. Mine was worn pretty bad. Replace the clutch fork if there's any wear on the end. A new clutch means a new throw-out bearing. Also, the tranny mount usually gets covered in oil, which weakens the rubber. Replacements are cheap.

Oh - the speedo cable screws into a Muncie on the passenger side. It goes in on the driver's side on a Saginaw. You will need a new speedo cable and will have to drill a new hole in the firewall to run the cable through. Hole placement can be determined with the factory engineering diagrams. The book is available from most resto shops.
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post #6 of 6 (permalink) Old Apr 10th, 02, 01:54 AM
 
Join Date: Apr 2001
Posts: 149
you will also need new shifter linkage kit jegs sells them for about 90 bucks i had to for my competition plus shifter hope this helps.
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