October 8th, 2025, 09:27 PM
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Join Date: Jan 2013
Location: Corona, CA
Truck: 1961 Suburban 1962 GMC Utility
Posts: 1,213
Thanks: 94
Thanked 32 Times in 25 Posts
Rep Power: 441
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Re: Toro flow D478 vacuum pump
I found this post mention in the Archive's Previous Posts section.
Quote:
In most of the brochures I have that show the Toro-flow engine, it's shown as yellow, so my guess is that is the stock color.
Diesel engine don't have the vacuum that a gas engine does, so they have to have a vacuum pump to the run any power brakes.
Michael "Jolly" Goodfellow
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1961 GMC Suburban 305A Overdrive
1962 GMC Utility 305D
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