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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Exhaust bolt thread size?

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Old Jul 31, 2006 | 01:50 PM
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AFSOCmech's Avatar
AFSOCmech
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From: Jackson, Tn
Exhaust bolt thread size?

I'm trying to find the thread size for the exhaust manifold bolt for a 94 F250 with 5.8 engine. I'm missing one bolt from manifold and would like to get one to put in without having to pull any of the others out to check for size.
 
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Old Jul 31, 2006 | 08:24 PM
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mx495's Avatar
mx495
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From: MO
3/8 16 pitch (coarse thread)
Short ones are 1" with a lock washer, long ones are 2" if i remember right. i can check if you need to replace a long one to be sure.
 
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Old Jul 31, 2006 | 08:47 PM
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AFSOCmech
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From: Jackson, Tn
Thanks for the info. Using a mirror, it looks like there may be part of the old bolt snapped off in the hole. I'll work more with it later, but it does look like it would need a two inch bolt.
 
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