Model 'A' Rear Spring: This 8 leaf, 2 1/4" wide, reversed eye buggy spring is designed specifically for SO-CAL frames (though the combo can be used on most early hot rod chassis). It's narrowed 3" from stock for clearance in favor of most wheel and tire combinations with rear ends measuring 55" and wider "drum face to drum face". Exclusive to SO-CAL, the spring is offered in plain with reverse eye only.