07-24-2013, 01:16 PM
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#9
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Senior Member
Join Date: Aug 2008
Location: Cedar Park, Texas
Posts: 7,500
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Re: Is this fitting really necessary???
Quote:
Originally Posted by Tx Firefighter
This guy has it right. GM could build the entire cab assembly by using that union. Then when it came time to assemble the engine compartment, that union was there to receive the oil line from whatever engine the truck was spec'd with. Small block, big block, or six cylinder.
Otherwise they'd have had to keep several different oil lines on hand depending on which engine the truck received and snake it in afterward.
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