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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2005 Posts: 388 Shop Shark | | Shop Shark Joined: Jun 2005 Posts: 388 | Those two "bolts" with the round heads do not get removed there is a large set screw and locknut inside the crankcase that holds the oil pump in position. Look at page 6-14 Shop manual. The set screw must not be over-tightened when installing the replacement pump. Hope this helps. Hoyt | | |
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