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Click on image for the lowdown. 
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| | | Forums66 Topics128,109 Posts1,056,261 Members48,439 | | Most Online14,466
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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Aug 2009 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 48 | Hey Maybellene, what's the purpose of the aux oil line? I have seen it a couple times before on other trucks and my truck has this too. I seem to only see it used when an oil filter is added. Does it have to do with the type of oil filter used? | | |
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