Your not enjoyin' that truck are ya???
The drop in oil pressure is normal for a chevy engine , they have a gear pump and its pressure curve is not linear and at idle it is common to drop to 15 psi or so
watch the guage when you let off the gas cruising the press will jump up a couple of pounds when the engine unloads (the crank is close to the top mains under deceleration.
Also NICE to see the smooth gentle hand on the shifter
Down there where its warm all year you should be able to run straight grade CF-2 30 engine oil that might help if you have oil consumption problems
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62 GMC 910 short fleetside 454 super t10 14 bolt
w/gov lock 70s c20 front discs (built in the 80s)
65 GMC 930 dualwheel 292 4spd all origonal 39k mi(my sons truck)
63 GMC 950 camperized school bus, (Gus the bus)
350 4speed 2 speed rear
64 GMC 950 "spare" bus 283? 4speed detroit locker
53 GMC 1ton dual wheel bus
78 GMC c25 short course off road race truck(son's truck)
355 th400 14 bolt (
www.wheel2wheel.ca)
88 Peterbilt 379 longhood (hauls race truck)
