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| | | Forums66 Topics128,124 Posts1,056,334 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: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | Mine has 1/4" tubing on my 37 Buick with a DA pump and the same on a customers 40 Pontiac. One is a straight 8 and the other a flathead 6 so it seems GM used the 1/4 for all. This may or may not be of help.
Evan
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