Some inventions such as leaf spring traction bars or slap bars gained much popularity in the drag racing sceen. The design in this invention is merely an addition to the systems already in place by the vehicle. The slap bar takes the torsional stress from the centerline of the axle and directs it over the forward facing leadspring eyelet. In my opinion for it's time he design was incredible however it did not provide much functionality other than for hard launches coupled with its eyesoring properties the idem is bulky low hanging and unattractive. What is considered today's modern rendition of the slap bar is now called a cal-track. This is another system that works with the vehicles leaf spring components to provide more traction by adding another stress portion of the leaf spring in an attempt to cure the axle wrap. (How to build Hot Rods
Some inventions such as leaf spring traction bars or slap bars gained much popularity in the drag racing sceen. The design in this invention is merely an addition to the systems already in place by the vehicle. The slap bar takes the torsional stress from the centerline of the axle and directs it over the forward facing leadspring eyelet. In my opinion for it's time he design was incredible however it did not provide much functionality other than for hard launches coupled with its eyesoring properties the idem is bulky low hanging and unattractive. What is considered today's modern rendition of the slap bar is now called a cal-track. This is another system that works with the vehicles leaf spring components to provide more traction by adding another stress portion of the leaf spring in an attempt to cure the axle wrap. (How to build Hot Rods