Differences in 70 and 73 fenders? Is the back half the same?

[Challenga]

This is a question for a real Challenger pro.  I have a 70 Challenger with a damaged front fender.  It is smashed in between the door and the wheellwell.  I just happen to have an extra 73 fender that is rusted out in the front.  I would like to cut up the 73 fender  and repair my 70.  Are the differences only in the front half of the fender?  I haven't gotten out there with a tape measure, but they look the same on the rear half of the fender.  Does anyone know if this would work?  Would the body lines line up?

[72rtchallenger]

only differnce is the marker light on a challenger

[Challenga]

Thanks!

[Chryco Psycho]

& the lack of headlight buckets after 71

[E-Body Products]