VE VF VG the same i believe
VH and later got very very flat springs.... and the chargers were different again.
i have a set of charger springs if you need the shorter leafs
i.e with a Charger i can't go to the US to get a new set of mexican springs for $160
which is why i put may faith in good old aussie steel and had mine fettled via Anton at the forge where he had his done.
i got my plastic sliders through WASP ($20 for 6 rather than $16 AUD each) and purchased Zinc in 0.8 mm and cut it to length for the liners between. aussie springs had no zinc US springs did and still do but the replacemnet zinc interliner sets are just galvanised steel plate....rrrrrrrruuuubish, and cost $110 a set.
zinc plate of ebay cut same width as spring drilled a hole (1 full length of plastic slider from end of zinc)
covers the clamp bolt area and go forward to about 1/2 to an inch from the forward spring clamp. i have a completely smooth a silent rear end
clamps are clamps are clamps so either anton or the spring place sorted that
think the u bolts are the same for any mopar with the same diameter axle tube...i just can't remeber what it is, easy to measure
you can spot orginal chrylser U bolts, they are flat round the U and have a cross hatch pattern
designed not to crush tube and not slip. so unless completely corroded or the threads are done in, i'd try to keep the originals, unless they have been tightend by a complete animal they should be ok.
i'd suggest 2 door dart in the US, springs would fit 2 door aussie VF VG
if you know that 2 door is the same as 4 door (that bit i don't know) you could probably use any plymouth dodge spring for an A body from about 67 to 71.
your axle length and spring perch setting is per US A body on a VG. mine is same as mid 60s B body
unless you have snapped spring leaves i'd get the orginals done.
heat em, bend em, heat em, you choose ride height and sprig rate...stick in extra leaf if you want to tow, avoid watching somthing new, expensive to ship, and possibly substandard, sag faster than the orginals did.
dave