I'm pretty sure the driver's side springs in most cars are a little stiffer so that the car is more likely to ride level with one of us brutes driving the brute and alone in the car. Engines are also offset a little to the right-maybe to generate more floor space for the driver and pedals as well as offset driver mass. Oval track racing suspensions might be stiffer on the RHS. Ride height on the C-300 was about 1.5" lower than the NY. The stiffer front springs acted to reduce bottoming out with this "slammed" suspension. One must make sure the F&R springs are "300 spec". I have noticed that 300's with replacement or re-arched rear springs often have a jacked-up/raked appearance. The spring rate may be correct, but the arching curve appears to be excessive. While some after-installation settling may be built in, I don't think they came from the factory that way. Our C-300 was actually kind of low in the rear and came equipped with rear helper springs and a trailer hitch. The original long-term owner may have been dragging a horse trailer or camper around the Colorado Springs area. New shocks, no helper springs and the tired old rear springs gave it a rather low and wicked look. A favorite picture is attached for the individuals and available for the interested. My notes show these spring rates in lbs/inch as per AMA spec's: C-300 New Yorker Windsor Front 800 480 480 Rear 160 100 90 The C-300 rear springs were seven-leaf instead of five or six-leaf in the other sedan/coupe/convertible models. Crown Imp's and wagons also had seven-leaf rear springs. In spite of the much stiffer front springs, I did not find the ride in our '55 C-300 to be anything but firm. But I drive a Jeep and a 4WD Durango so may not be used to a boulevard ride. I do recall that manufacturers of cars at the time sought that mushy boulevard ride in the '50's, so a stiff suspension as on a C-300 would have been unusual. There are stories of prospective buyers coming in to a Chrysler dealer after another big NASCAR win or Tom McCahill article and test driving the C-300, finding it too stiff and buying a New Yorker or Windsor instead. That was certainly the idea behind the low -production high-priced 300's. It's always about selling cars, but first the customer must be drawn into the showroom. Utilizing the Chrysler 300 mystique/concept to draw customers in continues today after a 26-year hiatus of (none built 1972-1997). Brand recognition is amazing. Viva Chrysler 300's. Someday soon, a coupe and/or convertible? Seems like they could create one easily on the Challenger chassis. Maybe bring it out in just three colors, tan leather seats, hellcat engine and red, white and blue side emblems. Harrier than a Borneo gorilla in a raccoon suit (thanks, Tom). C-300-less, Rich Barber Brentwood, CA From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of 'John Grady' jkg@xxxxxxxxxxxxxxxxx [Chrysler300] Sent: Monday, June 06, 2016 7:54 AM To: grahamowner@xxxxxxxxx; 'Lazenby, John' <french_fryguy@xxxxxxxxx>; 'Bob Jasinski' <rpjasin@xxxxxxxxxxx>; 'Noel Hastalis' <cpaviper@xxxxxxxxxxx>; 'Ed Cornish' <ncrdawgn@xxxxxxxxxx>; 'Bob Merritt' <bob@xxxxxxxxxxxxx> Cc: chrysler300@xxxxxxxxxxxxxxx Subject: FW: Fwd: [Chrysler300] RE: coil springs Hi all, they appear to be the right things, NOS, have instruction tag attached R +L. it appears wire size on passenger is slightly thinner, hard to believe but that would make it slightly less stiff , but a really tiny difference . Whatever, R +L are different! That reflects a lot of care by someone designing it. The "dents" appear to be little squares stamped into metal on OD of turn, and they are different . I am sending the pix to those who commented, as I understand server does not a pass pics . I would like same $ as club gets as wholesale price for the leaf springs , plus shipping . Appear to be real 55 300 front springs, NIB. -----Original Message----- From: ncrdawgn@xxxxxxxxxxx <mailto:ncrdawgn@xxxxxxxxxxx> [mailto:ncrdawgn@xxxxxxxxxxx] Sent: Monday, June 06, 2016 9:44 AM To: jkg@xxxxxxxxxxxxxxxxx <mailto:jkg@xxxxxxxxxxxxxxxxx> Subject: Re: Fwd: [Chrysler300] RE: coil springs Hi John, The springs look very similar and hard to get a wire size. Driver side is .810-.814. Pass side is .804-.812. Both are 5 5/8" wide, and 9 coils. Heights are about the same, D 13 3/4", P 13 1/2". It is hard to tell in the picture, but the driver side looks to have two deep dents and a shallow one on the bottom side of the coil. There are three deep dents on the pass side. I didn't see any numbers. Ed Please note: message attached From: John Grady <jkg@xxxxxxxxxxxxxxxxx <mailto:jkg@xxxxxxxxxxxxxxxxx> > To: cornish ed <ncrdawgn@xxxxxxxxxxx <mailto:ncrdawgn@xxxxxxxxxxx> > Subject: Fwd: [Chrysler300] RE: coil springs Date: Sat, 4 Jun 2016 18:40:11 -0400 [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ Posted by: "Rich Barber" <c300@xxxxxxx> ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! 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