FRONT “Z” BRACKET WITH 2 HOLES DRILLED IN IT; THE FRONT OF THE TANK GOES INTO THIS BRACKET AFTER THE BRACKET IS BOLTED TO THE ORIGINAL 2 HOLES. USE THE LONG BOLT SUPPLIED WITH THE KIT ON ONE END OF THIS STRAP AND USE THIS LONG BOLT TO PULL THE TANK UP TIGHT TO THE UPPER BRACKETS THAT ARE ALREADY FASTENED TO THE UNDERNEATH OF THE FLOOR BOARDS.