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[GMCnet] Mystery Part [message #318435] Sat, 03 June 2017 22:43 Go to previous message
powerjon is currently offline  powerjon   United States
Messages: 2446
Registered: January 2004
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Senior Member
These pictures were posted recently on the Photo Site with a question, what is the part?

http://www.gmcmhphotos.com/photos/mystery-part/p11540.html
http://www.gmcmhphotos.com/photos/mystery-part/p11541.html

This appears to be the Passenger side baffle used on the 77 & 78 coaches with he 403 engine. Appears whoever removed it cut the rubber side walls to get it out. There is a picture somewhere that shows how they were installed. These were added to direct the air thru the radiator and not let it go around. Ken H has a good album on how to add this type adder to your pre 403 and if they have been removed from your present 77 403.

http://www.gmcmhphotos.com/photos/g6117-grille-to-radiator-duct.html

JR Wright
GMC Great Laker MHC
GMC Eastern States Charter Member
GMCGL Tech Editor
GMCMI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
 
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