6637 mod
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Elder User
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From: North East, MD
6637 mod
gettin ready to do the 6637 mod and want to know what specs you guys use pn your pipe. I know its 4" and should have a 45* in it but how long should it be and where should thre ben be?
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Joined: May 2005
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From: shiloh, kentucky
IDMooseMan post -
paid about $35 for a NAPA 41632 pipe. It's a 4-inch 45-degree mandrel bent pipe about 12 inches long.
https://www.ford-trucks.com/forums/6...pe+replacement
paid about $35 for a NAPA 41632 pipe. It's a 4-inch 45-degree mandrel bent pipe about 12 inches long.
https://www.ford-trucks.com/forums/6...pe+replacement
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Joined: Jan 2004
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From: Kearney, Nebr
Whoaa $35 for pipe? If you want to save some money just hit up the exhaust or big truck shop and ask for a piece of 4" about a foot long. Then cut it at a 45 with a cut saw and then weld it up tight.
You can always shave off the ends with a cut saw so I wouldn't too much about the measuring from center to center.
You can always shave off the ends with a cut saw so I wouldn't too much about the measuring from center to center.
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