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Old 03-09-2017, 12:11 AM   #1
prodjay10
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no cross member under manual transmission

I have a 1971 c10 short bed I bought about a year ago. I had the tranny taken off because of oil leaks that I wanted to take care of. Turns out the tranny has nothing supporting it other than the e-brake cables that run under it.

It is supposed to have one, correct?

Would I have to custom make one or are there cross members pre made for this application?

Thanks for the help.
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Old 03-09-2017, 02:52 AM   #2
randy500
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Re: no cross member under manual transmission

No crossmember from the factory and not needed in stock form. Chevy did that to other older model cars too.
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Old 03-09-2017, 03:08 AM   #3
prodjay10
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Re: no cross member under manual transmission

Thanks for the reply.

I thought I had mentioned this in the first post, but does it matter if its a muncie and the case is aluminum? I've driven it about 5k miles this way with no problems that I can think of caused by.
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Old 03-09-2017, 03:14 AM   #4
randy500
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Re: no cross member under manual transmission

Quote:
Originally Posted by prodjay10 View Post
Thanks for the reply.

I thought I had mentioned this in the first post, but does it matter if its a muncie and the case is aluminum? I've driven it about 5k miles this way with no problems that I can think of caused by.
I have run a Muncie but when I did that I did install a rear crossmember and removed the one from the bellhousing, I did it to protect the trans as that is how it was meant to be mounted.

I thought you were talking about the stock cast iron 3spd or 4spd, those take a lot of abuse and never seen a problem with them just hanging from the cast iron bellhousing.
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Old 03-09-2017, 01:55 PM   #5
LockDoc
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Re: no cross member under manual transmission

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The M21's don't need a rear mount either. I ran one in my '67 Short stepside for a number of years with a bell housing mount. If you are going to put a rear cross member mount in it you should remove the bell housing mount. 3 point mounting is not recommended....

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Old 03-26-2017, 01:53 AM   #6
prodjay10
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Re: no cross member under manual transmission

Thanks for the replies.
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