Leaf Spring Sliders

Has anyone used the leaf spring sliders instead of shackles? Do they work on dirt track cars? Are they worth the money? This is on a pinto chassis.

i have used them on two cars and i love them because it frees up chassie in corner i think just my opionion

I have them an like them. Be sure you add cleaning and greasing them as part of you normal maintainance. Shakles are good to set and forget but the sliders getting bound up will make the handling really evil