trunk weatherstrip for 62 dodge lancer

i am wanting to replace the trunk weatherstrip in my 62 dodge lancer, and seem to be having a problem getting the correct seal. the one that i was sent says 63-76 a body, not 62. they say it is the correct seal? the seal is too wide to fit into the channel, and isn't as tall as the original.
any suggestions on this? does metro tk 64 a 18 sound correct? that's what rock auto lists for it.:banghead: