are you using the correct locknut? There's one that is thinner, just for this purpose. I made that mistake, too, by putting a thicker locknut on first (which is also in the kit) and then realizing that there must be a thinner version, which there was. Hope this helps.
I guess you are referring to the front axle bolt and if that is the case, I did have the same issue on my first 14A and did have to order a longer bolt.