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Rocker arm shaft 235/261 #699986 12/01/2010 6:43 PM
Joined: Oct 2010 Posts: 45 De Leon Texas W WillH New Guy
WillH New Guy W Joined: Oct 2010 Posts: 45 De Leon Texas	What is the significance of the two grove rocker shaft on the late 235/261 engine? Are there others that will interchange? My shafts measure 12 1/2" long, .792 diameter and have one small and one large grove on the same end. I believe the GM part no. is # 3836138. Any information appreciated. Thanks......... Last edited by WillH; 12/01/2010 7:00 PM.

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