I'm buying tublar uCA and LCA's I have the lower ball joint off the 73 donor car already..... I also have the proper proportioning valve off a 73-76 A-body.... any sourse of suppy would be helpfull along w/part #'s....
Not ssure of part numbers but if you go to Napa or whereever you get your parts just tell them you have a 75 dart with front disc and rear drum. They only show one rotor and one caliper for this application. Not sure why he asked you front or rear mounted??.....You can rear mount them if you chose to swap the spindles left to right and many people do this to avoid any collision with a sway bar upfront but even at that, the calipers are the same.....no difference. Maybe I missed something but try another parts outlet??......Good luck. Using the above info will get you the right parts.