Kit includes: - 2 x 6mm steel 4 link plates with 10mm bolt holes (drill to suit your application). Suit 3" diff tube. 3.5" available by request. - 2 x 6mm steel 4 link plates with 10mm bolt holes (drill to suit your application). Suit 3" diff tube. 3/8" Mounting holes on the rear of bracket to mount coilover brackets. - 4 x 5mm steel top coil over tabs 1/2" hole - 2 x 5mm steel coil over mount bracket RH - 2 x 5mm steel coil over mount bracket LH - Comes with 3/8" mounting bolts - Coilover mounts come with spacers to fit either 1" bearing or 1.25" bushed coilovers Brackets have 2 x 1-1/4" hole for tube bracing to the diff housing Doublers are made from 3mm steel if option is selected. *** PLEASE NOTE: WELDING BY PROFESSIONAL REQUIRED FOR FITTING TO AXLE HOUSING ***