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Click on image for the lowdown. 
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| | | Forums66 Topics128,021 Posts1,055,372 Members48,420 | | 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!
| | THANKS!
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: Oct 2006 Posts: 39 Junior Member | | Junior Member Joined: Oct 2006 Posts: 39 | Champion lists a number of UY6 gapped at .037. NGK list a GR4 gapped at .035.....Autolite is:
Platinum AP303 .035
Copper Core 303 .035 | | |
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