Which brake calipers for a 11.75 Front disk brake conversion

[hookem78613]

I am doing the disk brake conversion on my Cuda.  However, It looks like I have the wrong calipers because they are just slightly bigger than the caliper adapters I have for the large rotors.  The caliper adapters I am using take the slider type calipers.  I bought slider calipers from local parts store for 77 New Yorker and the are really close but just don't fit correctly. I can't remember if they are too big or too small...but the definitely don't fit.  Off by about 1/4 inch or less.

Can anyone tell me which model car I can buy the calipers for?  Better yet can you give me the part numbers if you got em?  Any advise would be mucho appreciated.

Bryan

[haplo]

  Make sure you have the right calipers mounts for the 11.75 disk. you most likely will have to get off a 77 c body. Mine came off a 77 fury cop car.

[hookem78613]

I double checked them.  They are for the big rotors and measure 3 5/8 from flat surface to center of bolt hole.

[ShelbyDogg]

I have the caliper bracket off of a 77 Grand fury with 12" rotors. They are too big to put on a 74 Challenger Spindle because the mounting holes were too far apart for the spindle mounts.