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T-56 Whining

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Old 07-19-2012, 11:29 AM   #21
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My T56 had some light whine and the rocks in a shoebox sound prior to rebuild. I found the mainshaft bearing preload was a little on the loose side. After tightening it up to tremac spec, it was much quieter.
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Old 03-02-2017, 09:30 PM   #22
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I discovered this thread after doing a search for information on T56 noises. Mine is a magnum that had a 4th gear whine from the day I installed it (new). I recently sent 1-4 gears to Liberty's to be faceplated. When I got the gears back I put everything together and now have about 500 miles and a few 1/4 mile passes on it. Right after I got it back in I noticed a slight vibration noise at idle that got more noticeable as it warmed up. At first I thought it was header tubes vibrating or something lose. Now that noise has become a lot louder and today it actually concerned me.

Another thing is, even though it is faceplated, 4th gear grinds and is not easy to engage. I plan to call Brad at Liberty's tomorrow but thought I'd see if anybody here has any ideas. I'll probably pull it apart next week and check it out.
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