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Old Nov 2, 2006 | 05:45 PM
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77ford guy
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Red face Replacing rear main seal

Hey! I got oil leaking out of my belhousing, rear main seal? Right? Anyway, will i have to pull the engine to get it replaced? This is on a 1977 f250 4x4 with a 351m.
 
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Old Nov 2, 2006 | 08:10 PM
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danlee
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Check the oil pressure sending unit in the back of the block, on the top behind the manifold. They can leak badly and look like a rear main seal.

The rear main seal can be replaced without pulling the motor. It is a dirty messy job, but many have done it. Sometimes it is easier to pull the motor.
 
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Old Nov 3, 2006 | 10:45 AM
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Thanks for the help!
 
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Old Nov 7, 2006 | 04:48 PM
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yeah they make 2 piece rear main seals so no pulling is required. i also have a bellhousing drip, but i havent figured where it is from yet
 
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Old Nov 9, 2006 | 11:51 PM
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drunknmudder77
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I had to drop everything from the flywheel back & drop the pan. The crossover pipe was in the way but i could drop the #5 main cap from there.
 
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