Does anyone know if the 1960 Chrysler tail light housing and the 1961 Chrysler back-up light housing are exactly the same profile and will fit into each others body? Will you have to modify and fill in or cut one or the other? I may be buying a 61 and the previous owner put 1960 tail lights in place of the 1961 back-up lights. Thank you all in advance for any help that you may give. Charlie Valentine