To my knowledge the strut rods do not flex or bend or twist at all, they just move a bit in the rubber, to allow the suspension to move up and down , while locating suspension arm / spindle fore and aft. so that thickness is a non issue. (axial loads only); rubber durometer might change that fore and aft stiffness but not much and only of value for that kind of (rare) loads? —in case you hit a very deep pothole. ; I do not understand the torsion bars at all. It should be the other way around., stock ? The 300 should be thicker, as that is (factory) stiffer ; maybe 300 were swapped to smaller in the past? Any chance those numbers are inverted? Or 300 sport was really a very soft car compared to 300H ; which may be true. Interesting info, that is for sure.
But I do not know the factory 300H specs. Others will…
Why would a Newport be sprung stiffer than a sport?
See listings of aftermarket / MOPAR performance torsion bars for B and E bodies, as a rough reference? Thicker bars = stiffer suspension , mostly, usually related to holding up heavier engines too. . Might or might not like that impact on ride . ( I like stiffer) but------Not like it is a race car, screaming around corners on a NASCAR track? IMHO
Last year I installed a factory sway bar on my 62 Sport. In discussion with Dave Dumais at the MaCunngie meet, he said that it was likely that the strut rods on the doner (Newport) car were likely larger dia. Upon inspection, I found that this was indeed true. My current strut rods measure approx. .015 smaller than the Newport.
Also, a measurement of the torsion bars also reveals a difference. My Sport measures approx. 970 dia. and the Newport at approx 1.010 dia.
So the question is - Would it be worthwhile to swap out these parts to my Sport. I guess I'm wondering what difference, if any, would I notice in ride quality / handling.
Thanks, Charlie in Ottawa
Posted by: "John Grady" <jkg@xxxxxxxxxxxxxxxxx>
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