FORD 9 INCH U BOLT WITH NUTS DIFF HOUSING TO LEAF SPRING XR XT XW XY XA XB GT GS WILL SUIT 5 OR 6 LEAF SPRINGS NO LOWERING BLOCKS WILL SUIT XA XB XC WITH NO TRAMP RODS INSIDE DIAMETER IS APPROX 73MM LENGTH IS APPROX 185MM THREAD IS 7/16 UNF