Track Width Q.......

[Number98]

I know I have seen this before but maybe not....

Is the front track width different on 63-70 than it is on the 71-72?

If so what is the difference?

Is the difference in the frame and crossmember or what?

I have a 70, am looking to put disc and drop spindles on it and was just trying to get my mind straight on it.... I could string the differences between my 70 and 71 but they are about 700 miles away from me at the moment