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Mod | | | Forums66 Topics128,049 Posts1,055,680 Members48,426 | | 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
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| | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | Most DD engines only have a 400 RPM torque band- - - -1750-2150 RPM. You'll need another gear ratio available anytime the RPM drops much below 1850-1900, as Detroits aren't famous for having much low-end torque. The term "Screamin' Jimmy" applies to the blower noise, and the fact that they run best just a few RPM below the point where the governor kicks in. A 10 or 13 speed Roadranger would be an ideal choice for a transmission.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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