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Labor Day Putting down your wrenches or time for MORE wrenching? 
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#78689 06/12/2007 12:45 PM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Do you have the transmission mount on your truck?
The 1954 and later rear mounts and frame cross-member must be a little stronger set-up because they allow the transmission mount to be removed.
Are you drag racing? If not, my guess is that you have a problem not related to the 261.
There are people on the oldGMCtrucks site with experience mounting the 302 in a variety of trucks. They'd have experience and advice on rear mounts. | | |
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