Re: Yup! Another Cranny build.
I've got a few BL R/C's myself! A Neu/MMP 4s powered Mini Revo, Neu 2200kv/Castle Creations Mamba monster 6s Slash 4x4, and a Tekno conversion Hot Body's D8 that's Neu/MM powered!
I'm a bit confused at your issue. Can you get some pics to help? I just put on my springer fork tonight, after sanding, priming, and painting. It's a SunLite springer with brake bosses. It fit just fine with the HD wheel set. I did have to make a shim for the springer steer tube brace to fit. I also had to add two steer tube spacers above the brace in order for the top steer tube nut to lock down tight.