The first step is to lower the spare tire to make for more work room. We're using this hole here and that hole as well in the frame as well as two holes in the bumper. We're going to take out these two bolts, one here and one on the other side. After we've removed the existing bolts in the frame, we want to take our carriage bolt and block and set them in the frame. We're going to use the second most hole here towards the rear bumper, put one on both sides. Once we've positioned the blocks and bolts into the frame we'll go ahead and put our hitch up into position. We're going to re-use the bolts we've take out previously in the rearmost mounted location. Once we've loosely installed the bolts on each side, we now want to attach the bolts into the bumper. It's just under the license plate, you'll see two threaded holes in the frame.
We'll use these bolts and install it into the frame. Once we have all 6 bolts installed we can torque them down. The forward most bolts will be torqued down to 75 foot pounds, the rear most bolts will be torqued to 85 foot pounds as well as the bolts in the bumper. After torquing down the bolts, this concludes our installation for part # 82123 on our 2007 Chevy Silverado.