Help identifying main bearings - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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post #1 of 3 (permalink) Old 08-21-2016, 08:18 AM Thread Starter
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Help identifying main bearings

Trying to identify what size main bearings I have. All they say is DAB 95 7601 CAP U 3-37 B 67-38 DA-49
Just want to replace them with some new ones.

Any help will be appreciated
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post #2 of 3 (permalink) Old 08-21-2016, 01:50 PM
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Re: Help identifying main bearings

Replace the bearings by the application and measured crank journal diameter for proper clearances. Much simpler and far more accurate. Less desirable Option #2: If the bearings are being replaced on an installed crankshaft (driveway work), measure the combined bearing shell thicknesses, and compare to another known set. This is not a good option to set proper clearances with worn parts; but won't be any worse than it was, assuming the old ones were reasonably correct and the crank is not heavily worn.


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post #3 of 3 (permalink) Old 08-23-2016, 04:57 AM
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Re: Help identifying main bearings

Main and rod bearing inserts usually have a number stamped on the back that will tell you if they are undersized (0.010, 0.020, 0.030 etc.). Based on the numbers you posted the bearings are standard size. You can always measure it as PSIG suggests and be sure.
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