Conversation Between '86 F150 and GorkyMan

Hello I need help maybe u may assist

I need to buy a ignition coil for my 1998 Lincoln Navigator but from Motercraft could not figure out the difference between item numbered 3l3z12029ba and item numbred 12029, can u please help which one is suit with my suv and what is teh difference between two item

Thanks in advance and looking forward to hearing from you