1972 Nova 700r4 crossmember - Nova Tech
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  #1  
Old May 27th, 20, 01:22 PM
[email protected] erikzours@hotmail.com is offline
 
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Default 1972 Nova 700r4 crossmember

Hi All, My name is Erik and this is my first post on this site. I'm sure this information is on here somewhere, I just can't find it. I am installing a 700r4 transmission in my little sister's 1972 Nova. When we got the car there was no engine and tranny installed but it used to be a powerglide from what we were told. It did come with a cross member installed. If I try to install the cross member with the 700r4 it doesn't just seem to be an issue lengthwise but also heightwise. I can't just slide it back and put it in, it seems I have to lower the mount itself as well. The transmission hits the tunnel the way it is now. Does anyone know, if I cut the crossmember, how much I would have to lower the tranny mounting point? I need the height measurement from the top of the frame rail to the transmission mount pad on the crossmember. I live in Northern Ontario Canada so by the time a $200USD crossmember gets here I'm paying over $350CAD. Sorry for the long post, please don't hack on me if this info is one here somewhere. Thanks.
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  #2  
Old May 27th, 20, 03:46 PM
Big Dave Big Dave is offline
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Default Re: 1972 Nova 700r4 crossmember

Welcome to the Team Eric!

Fore to aft measurement of the mounting point (and length of the drive shaft) differs between a PowerGlide and a 700R4/4L60 transmission. However the height at which it bolts up remains the same. It you have the tranny cocked in the trans tunnel so that it hits the problem is with your motor mounts.

What motor are you using? and what motor mounts?

Big Dave
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  #3  
Old May 27th, 20, 11:11 PM
62 NovaWagon 62 NovaWagon is online now
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Default Re: 1972 Nova 700r4 crossmember

Welcome to Team Nova Erik!
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  #4  
Old May 28th, 20, 06:53 AM
[email protected] erikzours@hotmail.com is offline
 
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Default Re: 1972 Nova 700r4 crossmember

Thanks for the welcome guys. The engine is a 350 chevy and the mounts are energy suspension polyurethane. The tail of the transmission is cocked to one side slightly right now but even when I pull it to the center it seems like I have to stuff the tranny way up to even get things close. I will try it again this weekend.
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Old May 28th, 20, 08:54 AM
Big Dave Big Dave is offline
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Default Re: 1972 Nova 700r4 crossmember

Provided you bought Part Number: 3.1122 then it should fit.

Big Dave
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  #6  
Old Jun 5th, 20, 12:05 AM
railroader railroader is offline
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Default Re: 1972 Nova 700r4 crossmember

I'm surprised that length )from engine) to mounting point is not your issue. As Dave said the 700R is longer than the power glide. You could fabricate a mount or get the correct one. Try GM Classics 502-239-8487 and see what they can tell you. That's were I got mine.
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Old Jul 28th, 20, 04:52 AM
Rex Rennie Rex Rennie is offline
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Default Re: 1972 Nova 700r4 crossmember

Quote:
"Try GM Classics 502-239-8487 and see what they can tell you. That's were I got mine."
Thanks, Gary! I'll be taking note of that.
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