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Swapped T56 for 4L80, driveshaft interference

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Old 09-30-2014, 09:46 PM
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Default Swapped T56 for 4L80, driveshaft interference

Ok guys, need to figure out my driveshaft interference after swapping a 4L80 into my manual car. My firebird ride height was extremely low so while I swapped in the auto transmission I raised ride height an inch and half front and rear, plus installed 28 inch tall tires in the rear. I used no shim in-between the mount and tail housing. The driveshaft appears to be hitting the bottom of my driveshaft loop that is once piece with my chassis mount torque arm. Obviously my transmission tail housing needs raised.

How do I figure out how much to shim the transmission/mount?
Old 10-01-2014, 08:20 AM
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Does anybody on this forum know anything about setting up engine/trans angle? Of not what forum can I ask?
Old 10-03-2015, 11:07 PM
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you can either shim the ds loop down so the shaft will quit rubbing it or shim up like you said. I actually had to shim my ds loop down so that may be the option you choose as well.



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