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Airdirect · 02-06-2019, 05:13 PM

My maintenance manual for 1979 still shows both electric and vacuum available. I know the vacuum was used into the late 70's on school bus applications.

02-06-2019, 05:13 PM	#43
Airdirect Registered User Join Date: Oct 2016 Location: Powderly Texas Posts: 300	Re: 69 c50 My maintenance manual for 1979 still shows both electric and vacuum available. I know the vacuum was used into the late 70's on school bus applications.