Oh I missed that you said B body. I would go to www.energysuspension.com & hit "download catalog" then scroll down to page 36 & the # is 5.1112 & it has the apps that it fits & it includes some B bodies (not sure if back to 62 or not) I bought mine for an early A body & from top to bottom (not including the stud) is 3&3/8" on the nose. EDIT I went back over there & it fits 62-70 Belvedere