1991 Dakota 318 TBI Belt Tensioner made of Unobtainium

Mr. Sinister said
View attachment 1715893179 View attachment 1715893180 Is this the setup this post is about?

that looks just like the tensioner on my wifes 5.7 hemi

the pulleys can be ordered separate and are either smooth if the run on the outside of the belt, or grooved if the run on the inside