I've got my 80 firebird all ready for a new rear end swap I got all the lines and driveshaft off at this point. Its ready to be pulled out except I just can't get the rear end to come off the leaf springs. I took off the bottom isolator plate so it should be able to lift up and come out. But the leaf springs are just sealed into the spring perches it seems. There's a bolt that is through the leaf spring under the perch but I was told it just holds the leaf springs together. I got the axle supported on a Jack and I've been banging on the leaf springs but it just wont. Come loose. Am I missing something here? I really wanted to avoid dropping the leaf springs out. Will I have too? Or are the leaf springs just siezed in those perches really bad from 30 years of rust?