Thanks John. I see in the parts book where they changed over from coaxial to constant control sometime in 1958 model year. Ron -----Original Message----- From: chrysler-300-club-international@xxxxxxxxxxxxxxxx On Behalf Of John Grady Sent: Saturday, October 21, 2023 10:31 PM To: Ron Waters <ronbo97@xxxxxxxxxxx> Cc: chrysler 300 club <chrysler-300-club-international@xxxxxxxxxxxxxxxx> Subject: Re: {Chrysler 300} 1957 300C power steering pump Ron , i think big coaxial box on chrysler 57 , part of 58 takes much less pressure that the small box on plymouth and dodge that later became standard in big chrysler too . by 60 for sure and maybe 59 coaxial was gone .You need about same pressure on coaxial as mustang rack maybe 609-700 , other psi approaches 1000 on small mopar box used fur many years , GM saginaw too explains why different suppliers Sent from my iPhone > On Oct 21, 2023, at 9:38 PM, Ron Waters <ronbo97@xxxxxxxxxxx> wrote: > > Rob - > > Doesn't Lares guarantee their work ? If your Thompson pump went bad after they rebuilt it, I would speak to them about a do over. Also, from what I understand, any of the Chrysler Corp pumps used in 57-9 will work on a 300C or other Mopar of that era. > > Ron > > -----Original Message----- > From: chrysler-300-club-international@xxxxxxxxxxxxxxxx On Behalf Of > Rob Kern > Sent: Saturday, October 21, 2023 9:30 PM > To: chrysler 300 club > <chrysler-300-club-international@xxxxxxxxxxxxxxxx> > Subject: {Chrysler 300} 1957 300C power steering pump > > Hello 300’ly to all! > Mixed bag here folks with 300 C’s needing a power steering pump. > This is a one year only style pump which is different from the D pump > and the Vickers pump on Dodge and DeSoto for 1957. Much to my > surprise Advance Auto Parts, Carid, and Rock Auto advertise having > this pump! They are remanufactured pumps by Lares. They sell for > close to $300 with a core pump valued at close to $600. Without a > core for Advance it is close to $900. Mixed bag in my estimation from > a substandard rebuild of my Thompson pump in 2005 by Lares. Perhaps > there is a marked change a foot on the Lares remanufactured pumps now? > It sure would be nice. The price includes the reservoir and pulley. > There is a warranty by the Advance Auto Parts folks. I hope that > since Lares has teamed up with these 3 parts suppliers that this may > be an answer to our prayers to get this virtually impossible to find > part for our Cs. It would certainly relieve pressure on our > Reproduction Parts Committee to have these vendors supplying this pump > (pardon the pun!) If anyone has purchased one of these pumps from > these vendors please chime in on what the experience you have had with > the pump performance. A standard to look at is a bench tested > pressure output of at least 900 PSI for the real deal. Rob Kern > > -- > For archives go to > http://www.forwardlook.net/300-archive/search.htm#querylang > --- > You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. > To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/D73F715E-93B4-4D06-90EC-9825E30FD724%40sbcglobal.net. > > -- > For archives go to > http://www.forwardlook.net/300-archive/search.htm#querylang > --- > You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. > To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/001e01da0488%2463038790%24290a96b0%24%40comcast.net. -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/9FC8039C-4EFC-4140-B914-045D8514E180%40gradyresearch.com. -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/002001da0495%240ee13790%242ca3a6b0%24%40comcast.net.