I finally did what I should'a done in the first place and consulted my parts manual. It shows only two boosters for all '55's, one for the 300 and the other for all others (Plymouth thru Imperial). The only component part difference is the piston plate. It seems possible that later boosters may have been installed on some cars to improve reliability and/or performance. Thanks for the input and observations. C-300'ly, Rich Barber Brentwood, CA 1955 C-300 (Whoa, Nelly) (e-mail and website addresses deleted so can possibly get on the server) >I can't remember where I saw it, but I think I once saw the 55 booster with a more conventional master mounted on the front of it. > > > >The booster shown on e-bay does appear to be a 1956. Also on some 1956 examples such as New Yorker there was a bellows type booster used with the same master cylinder. My guess is if this came from a '55 Imperial it was changed out sometime in it's earlier life. > >Chrysler used a completely different master cylinder and booster along with different pedal linkage on 1955 examples. The 1955 unit was manufactured by Kelsey Hayes. > >John Lazenby >Southern California, just minutes from Disneyland >1955 Chrysler New Yorker Deluxe Town & Country >1955 Imperial Newport >1955 Chrysler C300 >1956 Chrysler 300B >1957 Chrysler 300C Coupe >1960 Chrysler 300F Coupe >1963 Volkswagen Beetle > > >>This looks same as on my B. However I think that I have seen ''bellows" >>type on 55's. But not certain. >> >> >>>Whilst shopping ebay, I came across a power brake booster at: >>> >>> >>>Trying to be helpful, I sent the seller a note that it did not look like >>>a '55 booster to me. He sent the following response: Hi, This unit was >>>removed from a 55 Imperial, And I know 56 units look the same..but they >>>also used a bellows type that looks totally different..however ether one >>>can be used..thanks Mike >>> >>>For my edification, were there different-type boosters on various >>>DeSotos, Chryslers and Imperials in 1955? I got the impression they >>>were all the same and a one-year Kelsey-Hayes experiment. >>> >>>C-300'ly, >>>Rich Barber >>> >>> >>> >>> > > To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/