( OVER SLING WEIGHT )

                                   Over sling weight
Excel Is attached To the bottom Of the leaf spring
and At the frame fit Parts of weight Stay inVolved normal and heavy Vehicles Of spring or excel of Joint Live like this

under sling weight

excel fit on top of Leaf spring
his
under sling weight It's said
at the excel Brake Backing plate wheels Its weight under sling weight In come

example - On the jeep leaf spring and Excel's been added