Rear Diferential Bushing's

[hotrodd]

I am installing new poly bushing's in my diferential.The old ones have the metal insert or whatever in the casting,this stayed behind of course when I burnt them out.My question is does the metal come out and push new bushing in or does it,the metal need to come out.It seems to be an awful tight fit leaving the metal "bushing" in. Thanks for any help,you guys are wonderful! By the way rare 81 I was wandering,if you read this how the cancer deal went?I support thing's like that cause I got that battle goin on Colon metastisized,2/12 yrs! Thank's very much.By the way I will win that battle one way or another,Goin to Huston if the oxiplatin isnt workin which so far it isn't.