The master cylinder housing on my 250R is shot. I've put two rebuild kits in it and the thing still seeps and goes through fluid. The gouges in the bore are too deep to sand out and seal good. I only have rear brakes on this trike, so its kinda important! Do the LTZ400's bolt right up and work? 300EX? Any other direct fit, or that will at least fit with an adapter plate I can make and no other big modifications? I'd like to get some firm, up to date answers. Brakes are a necessity!! Thanks.