4 link bolt on / 79 firebird trans am - need to a panhard bar o r watts linkage?

[jackoilrain]

Hi all, i'm a newbye, i've a question about the 4link bolt on:


I need of a panhard bar or a watts link to center the pinion and stop the side to side rear axle movement, or the 4bolt on kit it's enough to stop this?


Thanks,



Carlo