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Click on image for the lowdown. 
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| | | Forums66 Topics128,106 Posts1,056,213 Members48,436 | | 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: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | No need to change the gauge unless you want to . The earlier vs later models had difference calibration.
My 37 only registers 30 lbs....but I had it calibrated by D&M Restorations so that the actual pressure is "twice" what it reads, but the V8 still keeps it pegged but it hasn't hurt anything in 18 years. | | |
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