A better rear suspension design...
 

Need to eliminate bind in your rear leaf or 4-Link suspension? Check out our exclusive Articulink trailing arms! They're a 2-piece design that allows a wider travel range and smoother operation for better handling and a more comfortable ride. Customers attest they've reduced autoX times simply by swapping them in from other name brand arms. Look for your application at Speedtechperformance.com !

https://i.imgur.com/ov0TfQC.jpg