The instructions that came with the mount were terrible. The part's name used in the instructions were different than what was on the part. How the parts go together were not given. Also the pictures in the instructions were so dark I could not see anything. After call Tech support a couple of times I was emailed the same instructions in color. I had another question and never heard back from the Tech Support person after calling and emailing him. I ended up using the picture of the box cover to figure out how the parts went together. I had to guess which holes to use to fit my tire size. I would think Smithbilt would give some guidance on which hole to use for certain tire sizes. Parts are very beefy and heavy especially being made of aluminum. I used a magnet to confirm it wasn't steel. I'm please with the product but the instructions are lacking as well as tech support. The 4wheel parts salesman Josh was very helpful and knowledgeable and answered many questions I had on several issues.