I have Dr Diff's inboard spring hanger kit and 3200 lbs SS Springs on my 3700 lbs 1970 'Cuda. There were no fitment issues, and they don't hit the rear valance. I used a narrower1967 B-Body Dana 60. I am able to fit 325/50-15 Nitto Drag Radials without rubbing.
Last edited by jbc426; 08/27/20 12:25 PM. Reason: correction to year of rear end.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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