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Thanks for all the feedback, looks like its the Firm Feel bar I should go with. Next question is should I swap the front bar to a Firm Feel as well or will I be ok with the stock 40 year old unit?
how does the car handle now? if it's fairly neutral to slight understeer, increasing rear roll stiffness will make it biased towards oversteer, which can be kinda dangerous on the street. I'd talk to Dick and firm feel and take his suggestion, but I'd say you'd probably want a 1.125" front bar minimum if you're putting a rear bar on. if it has a factory front bar that's small (i.e. stock M bodies have a 7/8" front bar), see if you can find a bigger bar that utilizes the stock mounts, as it should hopefully be less expensive.
if your rear tires are significantly wider than the fronts (say, 225's in front and 275-295's in back) that'll bias towards understeer, and the rear bar alone might just bring it back to neutral without going so far as to make it oversteer happy....
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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