TH400 cross member question - Team Camaro Tech
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post #1 of 5 (permalink) Old Jan 6th, 01, 06:42 PM Thread Starter
Join Date: Mar 1999
Location: albany ny usa
Posts: 24

I've searched and found that in order to install mt th400 in my 67/conv , I will need a new crossmember. My question is ,I used my polyurthane small block engine mounts. Will the TH400 still mount to the new cross member?

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post #2 of 5 (permalink) Old Jan 6th, 01, 06:48 PM
Join Date: Apr 2000
Posts: 21,341

Yes, it should. It's just that various years and engines sat in the engine compartment a little differently due to different height and width motor mounts. pdq67

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post #3 of 5 (permalink) Old Jan 7th, 01, 04:30 AM
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Join Date: Nov 2000
Location: Pass Christian, MS
Posts: 294

The turbo 400 is also longer than PG, turbo 350, 4spd, 3spd, which all are the same length, by 1/2 inch or so, which makes the need for the 400 crossmember, which sets the trans mount rearward to compensate for the extra length.

69 rallye green X77 Z/28,1967 SS 396 Conv. 1974 c-10 454 swb
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post #4 of 5 (permalink) Old Jan 7th, 01, 09:23 AM
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Join Date: May 2000
Location: Waukesha WI
Posts: 2,938

The trans mounting pad on the T400 x-member is not in the center due to the offset bb mounting.
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post #5 of 5 (permalink) Old Jan 14th, 01, 03:35 PM Thread Starter
Join Date: Mar 1999
Location: albany ny usa
Posts: 24

UPDATE...Installed the new crossmember this weekend. Aside from drilling 2 new holes into the frame. It fit perfect, even with the smallblock motor mounts.

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