1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 915Get this manual
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BEAR NG PRELOAD TORQUES MERCRUISER n-TRS .VOTE: CharIs
10-20 InLbs(11.5-23 kg-em)
Drive Shaft Housing Complete (Uppe Dr ive Shaft and Universal Joint Shaft Recorded at Upper Drive S