53 merc oil pan in 35 pu frame

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I am trying to install a 53 merc motor in a 35 pu frame using Pete and Jakes 34 front end with vega cross steering. the original merc motor had a center sump pan and it interfered with the tie rod and steering arm. I have purchased a rear sump pan here on the Ford Barn but it will not clear the crossmember. Is there diferent rear sump pans ? the center sump pan cleared the crossmember just fine. Help thanks steve