I'm having difficulty locating a TH400 to 205 round bolt pattern adapter. ( Round bolt pattern to round bolt pattern, not figure eight.) This adapter will work with my doubler, and I won't have to change the TH400 output shaft. The next choice would be to find a TH400 output shaftfor a 203 w/ adapter to a 203. All leads appreciated. I've been making calls while driving all day. ORU gave me a semi-hot referral, but no cigar yet. I'll check back tonight and tomorow. Going to post in parts for sale and post in parts wanted next. Thanks!