trw /clevite catalog lists top and bottom bearing should have same number cb927p w/oversize .010 . my 1972 trw/clevite catalog lists no cb926/cb962 for any app [but these may be oem /ford #'s/application.there are some federal mogul bearings with an oil hole in the upper to oil piston skirt, but not the trw/clevite brg. also on the grooved lower brg, it has @ 30 % of the full width bearing /load carrying capacity.
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