Harold, I just got thru installing running boards and fenders on both of the 46 that I am working on. I used stainless hardware on everything to keep the rust down and I used a tap to chase all the mounting hold in the cab and radiator support so you can start the bolts easer. I used 1/4 20 3/4 and went thru the running board to the fender to hide the extra length of the bolts. You need to get a running boards mounting kit from one of the dealers, because you need special bolt to lock them in the running board and they have a bigger flat head on the 1/4 20. One other thing I would mount the splash guard on the running board and frame before mounting the rear fender, it is almost impossible to install them with the rear fender on. Do not tight any of the fenders and running boards bolts up until you have everything installed (both fenders and running boards). You can do it by yourself, but it is a lot easer with two. Running boards go on first. PM me with any questions, Good luck Jerry
