I have three with bellows and two with oval can. I think they were used interchangeably, from two suppliers. jc >I checked out the dealer site suggested by jdmoran (www.gessweinmotors.com) >and looked through his Imperial inventory. One of his 61s (with 20,000 >miles - yeah, right) has a photo of the engine compartment and it clearly >shows the exposed-bellows type of brake booster. My 57s had these but my >61 has the enclosed can type bellows. I don't think I have seen the >exposed bellows on another 61. > >Fellow 61 owners (and near years), what type of bellows do you have? My >car is an early production (#394) so it doesn't seem to be a parts >carry-over issue. > >Ken Miller > >61 and 67 Converts > >