Haha. Aww man, and here I was thinking I was slick. I've seen the borgeson box, as you mentioned not cheap. Will the arms cause any problems with hitting the oil pan do you think? My idler arm is dangerously close to the oil pan as it is.
Arms are just longer. I have never heard of anyone using them on the manual box. I would check with FF first. If I had to guess I would think they are made for the larger spline only, and I think the older manual box is the smaller spline. Edit: OK I am wrong, they make them for both sizes.