Disc brake swap?

I just got a set of disc brake spindle assembly off a late model A-body. It already has the large caliper adapters with 11" rotors. How can I tell which side is which and do they need to be reversed for my application on my '71 Road Runner. I want to disassemble them and clean them up, but I want to be sure I can tell which one will go on which side. I remember hearing something about reversing them in some applications because of the hose routing.
Jim

I mounted mine in the "stock" location in front-of the spindle on my '68 A-body, and in back of the spindle on my '70 e-body (see pic) The brake lines and calipers you need to use differ depending if you put them in the front or rear of the spindles.

This link has some good info. You can also look up "Doctor Diff" on this site if you have further questions. He is a great resource and a good man.

http://www.moparaction.com/tech/archive/disc-main.html

I think with the sway bar on the 71 it doesn't matter whether you mount the front or rear caliper. Just make sure the bleeder screw is UP.

Right, it doesn't matter in terms of interference but the hose routing is better if the calipers are to the front of the spindle. When the calipers are to the rear of the spindle you have a short hose that has to routed just right or else it will kink. In front of the spindle you can use an off the shelf hose without any problems.

So, if the calipers are in the front, I can use whichever spindle I need on whatever side to have the calipers on the front?
Jim

NO. If on this car the brake hard line/neoprene hose bracket is BEHIND the UCA AND you can mount the calipers in the front & they WONT interfere with the sway bar then that is what you want to do. Just use the particular spindle on the drivers side that will position the caliper mounting holes on the front side which means the other spindle when mounted on the passenger side will automatically position the caliper mounting holes to the front also.

the spindle from an A-body with out the bottom ball joint bolted to it

will go on ether side

the lower bj is side specific as well as the caliper bracket

mounted front or back makes no diff in stopping

you just want to go with the way the brake line is set up for front or rear mount of the caliper

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Right, it doesn't matter in terms of interference but the hose routing is better if the calipers are to the front of the spindle. When the calipers are to the rear of the spindle you have a short hose that has to routed just right or else it will kink. In front of the spindle you can use an off the shelf hose without any problems.

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For the record, I used the 70-74 E-body calipers and hoses for the front mounted position on my '68 A-body conversion and 78 C-body calipers with GM/Firebird hoses for the rear mount conversion on my '70 E-body. The later uses a banjo style conection, and fit's beautifully. I'd have to look up which year the hoses are, or just ask Dr. Diff. That's where I got my parts.