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Re: Heater core hose routing
The service manual shows the heater hose routings pretty clearly- it depends on if the truck is auto or manual trans as well. Auto trans equipped trucks use the radiator and manual trans trucks use the water pump.
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'51 South Bend Model "9A"
'56 Chevy 3600 NAPCO
'74 Chevy Cheyenne Super K20-restored on 37's
'72 GMC Sierra Custom K2500- in progress
'08 GMC Envoy Denali
'12 GMC Sierra 2500HD Denali
'17 GMC Yukon XL
VCCA member #58596
http://www.nohrco.com
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