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Is this a TRS?

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Old 02-20-2012, 03:58 PM
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Default Is this a TRS?

I have an outdrive that i believe is a trs. The serial # is 4521589. It is currently on a 27' century behind a 454 330. Whats the difference between trs 280 & 330? Any help is appreciated.
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Old 02-20-2012, 04:21 PM
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http://bluewatermarinesvc.com/pdf/dr...year_index.pdf

on here says its a trs.
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Old 02-20-2012, 07:44 PM
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Originally Posted by corvetteman
I have an outdrive that i believe is a trs. The serial # is 4521589. It is currently on a 27' century behind a 454 330. Whats the difference between trs 280 & 330? Any help is appreciated.
280 was a 350 ci with TRS 1975-76
330 was 454 ci
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Old 02-21-2012, 06:15 AM
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Could also be a TR on that style boat. How big a prop can it swing? TRS is 16" max, TR is 20".

Same upper unit, differant lower.
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Old 02-21-2012, 06:20 PM
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The serial # listed is to old for a history, but it falls into the TR range in the EPC (Electronic Parts Catalog)

Does the bullet area where prop shaft and carrier are look to be the same diameter as a Bravo or Alpha than a TRS if its bigger a TR. TR has also has bigger prop shaft.
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