If you are talking about mine they are factory power disc up front and drum on back. I'd love to upgrade the rears to disc but the rearend is an 8 1/4. I'll have to re-do an 8 3/4 then put disc on the rear.Right now it is a very fun car to drive but it is weak in some areas.

‘72 Charger, 5.9 Magnum, Tremec 5 spd., Pro-Touring
‘14 Big Horn, Quad Cab, 4x4, 1500