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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Oct 2010 Posts: 111 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2010 Posts: 111 | What has anyone used for a rear trans mount installing a T5 in an AD? The stock mount only has 3/8" clearance under trans flange in my '48. | | | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | If you're running a 216/235 single mount/double bell housing mount setup using a cross member T5 mount is going to be counter-productive. With the 3 point mounting system the engine/transmission frame flex and stress on the T5 case is not an issue. When you snub the rear T5 mount down, even with adding a dropped cross-member, you're going to be loading up the already limited strength case.
If you're running a V8 with side motor mounts and a single rear transmission mount you'll want to fabricate a dropped crossmember that bolts up under the frame and uses the stock BW/Tremec mount. I have some pics of the cross member in one of my Webshot truck albums.
I base this info on my own experiences with my 235/T5 combo in a 54 AD which has run without a 4th mount (T5) for the past 13K miles. I fabricated a cross-member that could be dropped down when you pulled the transmission but never did tighten down the T5 rear mount. Hope this helps.
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