1955-59 Chevy 2nd series Rear End Lowering shackles. Bolt On. This is way better to use than doing a rear end flip. Using our lowering hangers and the longer shackles we sell; you can get a 5-1/2” drop or less if you’d like. These are adjustable. The spring hangers and shackles are a product of Nostalgia Sid’s LLC. The spring hangers work with stock springs, reversed eye springs or lowering springs. Please check out our other listing for other lowering components. Thank you for looking.