I was wondering if anyone converted their 5 speed case to a 6 speed. Mainly talking about a 04' Ultra. If so, what route did you take? What brand and so on. Thanks.

 

You have MANY 6 speed trans to choose from to include HD, Baker DD6, Baker OD, Jims OD, Rivera, etc.... Baker DD6 seems to be the flavor of the day for most. Modifying your case for any of these is no big deal at all. You'll get a template to line up on the case and you just grind away the excess. Some HD cases don't require any mods. There's only a two or three places to grind at and you won't have to take much material off.

 

Thanks gunnert! I get it. Baker DD6 will be it. Pretty expensive but looks like it will be worth it for what my brother needs.