Here's a list of why you'd be better off with an OE style 65-7 kit, than using Granada parts:
•Slight changes in steering arm geometry over stock.
•Slight mislocation of steering limit stops.
•Unless the Granada in question just passed inspection before hitting the junkyard, you'll need to replace at least the pads and calipers, and possibly the rotors and grease seals. Cha-ching.
•Since the steering arm hole in the Granada is far larger, even bigger than the 70-73 Mustang, you'll need Granada outer tie rod ends. Cha-ching.
•If you have PS, you'll need a unique custom outer tie rod end on the LH side. Cha-ching.
•The Granada brakes require removal and installation of the spindles. Lots of work.
•Replacing the spindles requires wheel alignment, driving cost up more. Cha-ching.
•The hubs of the Granada rotors are larger than 65-73 Mustangs, so you may have to replace your wheels. Cha-ching again.
Using an OE style kit eliminates all of these problems, so the higher up front cost of an OE style kit is made up later in lower finishing cost, and a lot less work.
In fact, the OE 65-67 style brakes can be just as easily fitted to 68-73 Mustangs.
The 4-piston K/H brake system is no more 'correct' for a '68-'73 Mustang than the '75-'80 Granda disc brake system would be. However, the Granada front disc brake setup is very close in design to the stock '68-'73 Mustang front discs, whereas the '65-'67 K/H front disc setup is nothing like the factory '68-'73 front factory discs.
Wrecking yard take-off Granada disc brake parts only represents a
potential problem when installing these components on a '65/'66 Mustang. It does not create steering problems when installed on a '67-'70 Mustang because the Granada shares the very same front end width and
suspension geometry as the '67-'70 Mustangs. --'65/'66 Mustang track width is 2" narrower than '67-'70 Mustang/'75-'80 Granadas.
Steering stops remain in the same, unmodified, location on '67-'70 Mustangs with Granada brakes. [only '65/'66 models require modifcation].
Replacement brake components for Granada are, overall, far cheaper than replacement parts for the K/H 4-piston brakes.
NAPA parts/price listings:
1. Granada rotors $57.49 ea., K/H rotors $67.49-$199.00 ea.
2. Granada calipers $21.49 ea. + $10.00 core, K/H calipers $164.00ea. + $55.00 core.
3. Granada pads $16.99 front set, K/H pads $11.99 front set.
4. Granada front wheel seal $3.99 ea, K/H front wheel seal $3.99 ea.
5. Granada front caliper hose $10.99 ea, K/H front caliper hose $26.99 ea.
Stock '68 Mustang outer tie rod is $43.49 ea, Granada outer tie rod is $13.69 ea. --67-'70 Mustang uses same type outer tie rod on both sides regardless if you have power steering or not. The odd-ball, curved driver's side outer tie rod only applies to '65/'66 Mustangs with power steering.
Changing spindles only requires unhooking the
brake hose, knocking the outer tie rod, & upper and lower ball joints loose to remove the existing spindle/brake assembly from the
suspension arms.
Many people have long-since changed their wheels from stock anyway --particularly if they are making upgrade modifications to their Mustangs.
Not only are the up front costs of the K/H 4-piston caliper brake systems high, the consumable replacement parts costs are far higher than the Granada discs as well. The money saved will more than make up for any alignment costs incurred. The K/H 4-piston setup is a good braking system, but it will ultimately have a far greater "Cha-ching" factor to obtain & as well as to maintain them.