Stock clamshell mounts too large for Trans-Dapt 9525 - LS1TECH

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Stock clamshell mounts too large for Trans-Dapt 9525

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Old 12-14-2012, 04:38 AM   #1
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Default Stock clamshell mounts too large for Trans-Dapt 9525

Hi,
I'm having a problem. I bought the Trans-Dapt 4592 motor mount pads, but the standard SBC clamshell mounts are *far* too large for the pads to fit over. The "gap" on the pads is a little over 1" too small to fit over the mounts.

Clamshell mount on the left, Trans-Dapt pad on the right. You can clearly see the difference.

What is going on and what do I need?
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Old 12-14-2012, 04:52 AM   #2
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Is this something I could use instead of the 9525 mount pads, together with stock lower clamshells and the 4572 adapter plates?

http://www.ebay.com/itm/Small-Block-...51172483668%26

Click the image to open in full size.
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Old 12-14-2012, 05:22 AM   #3
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I did some additional homework:

The clamshell style mounts are the "new" way of mounting the engine. The Trans-Dapt mount pads are made for the "old" style motor mounts.

With mounts of the same design as seen in my post #2 bolted to the Trans-Dapt adapter plates and with the clamshell mounts installed in the car, it *should* bolt up. I see people are having problems with having the mounts line up correctly, but I guess that's close to unavoidable when "mixing and matching" from all ranges and years..
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Old 12-14-2012, 06:08 AM   #4
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What is the engine going into? This may also shed some light for you.
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Old 12-14-2012, 07:01 AM   #5
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Going into '89 Caprice. The B-body frame was more or less the same for the "boxy" and the "round" Caprice, all the years from 1977 to 1996.
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Old 12-14-2012, 07:09 AM   #6
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I used what you show in post #2 for my 84 monte carlo.
lined up perfectly.

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Old 12-14-2012, 07:16 AM   #7
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Thanks! I grabbed a pair cheap off Ebay (cheaper than the ones I linked to) today, so then I just have to wait until they show up and see how it works.
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4592, 69, 9525, camaro, carlo, clamshell, dapt, engine, modification, monte, motor, mount, mounts, sbc, trans, transdapt

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