Disc Brake Help!!!

[Pentastar Pete]

I have a 73 Challenger W /front disc. On this car, the calipers are mounted forward to the wheel.
On my   74 Challenger W /front disc, The calipers are mounted to the rear of the wheel.
The 74 had no brakes ( Calipers, pads or lines) in it when I bought the car. I bought calipers, and I can't get the flex line to fit. 

Is there two brake set ups, or is one wrong??
Thanks Pete

[sleepychallenger]

the calipers should be forward to the wheel. the 74 you might have to swap the spindles

[Bullitt-]

Tho spindles were put on the wrong sides...ask me how i know 

[Pentastar Pete]

Thanks guys!  I can see that now.

[sleepychallenger]

Tho spindles were put on the wrong sides...ask me how i know 

same here 

[Bullitt-]

same here 

What sucks is I had em on right the 1st time.....confused on the calliper adapter not fitting right I changed them around, to find out the hose would not reach....some days it just don't pay to get out o bed. .....know well how to tear em down & build em back tho

[Pentastar Pete]

I brought the calipers back to the parts store and told them they were wrong. The numbers checked, but I said then they were boxed wrong.  Now I have to get them back...
but at least we figured it out.    
Thanks Again.....

[HP2]

They will work either way. However, you have the hard lines to match, the correct caliper hose inlet location, the bleeder valves on top of the caliper, and check for sway bar interference.

[Chryco Psycho]

I agree , there are 2-3 different hose mounts types depending on the caliper but as long as the correct hose is used they will work either way

[ChallengerHK]

Is there any advantage to having them one way or another?

[Chryco Psycho]

front may be marginally better as it pushes against the stiffer lower control arm , other than that it is simple physics of clamping a rotating disc , it can be done anywhere around the circle