looking for Abody 4 speed parts.

The IBR { input bearing retainer } on most O.D. transmissions is 5.125. Most small block bell housings are 4.30. The aluminum bell can be opened up to around 4.70 and the O.D. IBR can be turned down to 4.80 to make it work. There are other solutions, and Im sure some one else will chime in.
:coffee2: