1971 Sport Fury 440" 727 with an 8 3/4", 489 housing and 2.76 gears, the tag is still on. It locks up on dirt and snow but not on asphalt so it needs rebuilt.
From what I've heard all Sure Grip's from 1969 are cones, it this correct?
Is it possible to rebuild a cone style differential, and if so where do I find the parts?

70 W100 Power Wagon. 318 4-spd
70 Sport Fury 440 2dr HT
71 Duster 340
71 Charger Super Bee - 383/727
72 Charger "Sabotage" - 440/727 - Street/Strip
78 Warlock in beautiful patina