741 v 742 v 489 housings

Just got back. There was a 69 Dart GT in the garage. Looking good. It is the dad of who I got the case from. I mentioned about getting a 8 3/4 housing and piecing the rear end together, since I can't afford the $1500 for a rear end. Then said something about backing plates and was told the old man has upgraded to discs on the rear and now had no use for the old backing plates. Picked up the plates with NEW brake hardware, no drums, for $20. Need cleaning. Good shape. Fit the housing I have, and the axles I have fit the 741. So, for $70 I got the housing and backing plates with the brakes. All in all I can't complain. Thanks for the responses.