Rms alterkation track width?

......... a set of 17x7 wheels with 4.75 bs. on the car now and they fit perfect and were not cheap. I am not going to be buying new wheels. I thought i read someplace that the RMS track width was slightly wider then stock? anyone have any input?
so here are the questions i have laid out and numbered. would love to hear back.

1. is the RMS track width wider then stock?

2. if so can that be changed by cutting upper and lower control arms down to bring spindles in closer?

3. how does the manual rack compare to stock manual box? harder to turn wheel?

4. anyone have real world #'s with how much weight i would loose with the swap. not including brake options? would get new wilwood kit.


also before i get asked. the parts the i have on my dart that are nearly new would get handed down to my 65 valiant so not wasting money by swapping to new suspension.

lets here the input guys.

on your wheels.....if memory serves me, Ross (Orangewagon) is running a 18 X 8 on the front w/ 26.3 tall tire. his BS is 5.25 and that puts the hub at the same spot as your wheel with an extra 1/2" of width per side.

turns full lock to lock....is it tight? yes, but looks killer, especially considering how low/slammed it is.

the weight savings I came up with on the HDK is 29.9 lbs....manual steer vs manual steer (minus brake package). the WHOLE manual package....steering assy, arms, torsion bars, ect all, weighed 114.8lbs total The HDK set-up sheds @ 25% of the factory weight