late model sun visors on 72 k20
 

Hi gang. Looking to upgrade my inadequate 72 sun visors which don't stop much sun. I have read that the 73-87 visors will work, but not sure what mods are required? Seems like sliding the new visors on old rods would work, but wanted input before I buy parts. Anybody have experience with this or a build thread? Or any late model visors work that are known of?
Thanks in advance for any help.
Chris