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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Tranny Crossmember Intergchange

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G3GM :: G3 Tech :: Engine & Driveline

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Post by 77mali Fri Mar 02, 2012 9:18 am

Anyone know if an X-body (73-77 Nova, Ventura, Apollo, etc) dual exhaust cross member fits in our A bodies? Does anyone have measurements already taken on one from a Chevelle or an M/C?
Thanks
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Post by ant7377 Fri Mar 02, 2012 9:22 am

I dont think that is going to work. You might just get the measurements from and aftermarket one since it would probably be the same as stock . An X car seems much narrower than an a/g body though.
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Post by 77mali Fri Mar 02, 2012 9:36 am

The aftermarket ones do look completely different. Thanks Ant!

http://www.transdepot.net/TH350-Crossmember-Chevelle-1973--1977-Hardtop-_p_179.html

http://www.transdepot.net/TH350-Crossmember Nova-1968-1974_p_136.html
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Post by Mcarlo77 Fri Mar 02, 2012 9:46 am

52 1/2" o.a.l. on the Monte/Chevelle dual humps. About 51 1/4" ctr-to-ctr on the mtg holes. As you may know, the El Caminos are shorter. Have no idea on the Novas, Apollos, Venturas.
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Post by 77mali Fri Mar 02, 2012 9:49 am

TY Steve, good to know that info.
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Post by Limey SE Fri Mar 02, 2012 10:07 am

this one is from a Buick and is about 15 pounds lighter than the Chevelle one, I think it was from 74 Century




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Last edited by Limey SE on Fri Mar 02, 2012 10:14 am; edited 1 time in total

___________________________________________
1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
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Post by 77mali Fri Mar 02, 2012 10:11 am

Thanks Limey

Jeez, I givin out cred like candy today!
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Post by ant7377 Fri Mar 02, 2012 6:41 pm

Wonder why the Buick ones are so different form Chevy's ?
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Post by 77mali Fri Mar 02, 2012 6:45 pm

I'm done givin street cred today lol!
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Post by 77mali Fri Mar 02, 2012 6:45 pm

Limey SE wrote:this one is from a Buick and is about 15 pounds lighter than the Chevelle one, I think it was from 74 Century




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you still have it?
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Post by Limey SE Fri Mar 02, 2012 9:21 pm

nope one of the dam things I forgot on the green car AAAAARRGGGGGGGGGG Will be looking again for one myself LOL or modify mine to a dual

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Post by Mcarlo77 Sat Mar 03, 2012 11:02 am

ant7377 wrote:Wonder why the Buick ones are so different form Chevy's ?

Not only that, but different from Pontiacs and Oldsmobiles, too. Never looked under a Buick...but, plan on it next time out.
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Post by ant7377 Sat Mar 03, 2012 3:26 pm

A guy I know near here has three very mint 73 GS' and they look very different underneath than the Monte . Cant figure it out Xmember is certainly part of it and a different motor .
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Post by 77mali Sat Mar 03, 2012 4:16 pm

Is the X member the same for TH350 & 400?
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Post by 1973 454 MONTE Sat Mar 03, 2012 5:16 pm

77mali wrote:Is the X member the same for TH350 & 400?

it is for a monte. just have to put it in different frame holes.
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Post by 77mali Sat Mar 03, 2012 6:43 pm

1973 454 MONTE wrote:
77mali wrote:Is the X member the same for TH350 & 400?

it is for a monte. just have to put it in different frame holes.

It must be the same way for Malibu then for the 2 Trans'...?...
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