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Click on image for the lowdown. 
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| | | Forums66 Topics128,094 Posts1,056,056 Members48,433 | | 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: Jul 2000 Posts: 2,192 Insomniac | | Insomniac Joined: Jul 2000 Posts: 2,192 | Good info, but how do you tell the difference between NPT and NPTF when you look at them? Are they stamped?
BTW, I have heard that teflon tape is not to be used on our trucks' fuel systems; use dope only. There is a yellow teflon tape for gas such as natural gas or propane.
Gord 🇨🇦
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1954 1/2 ton 235 4 speed
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