In a 489 or 742 case (big pinion). I had to sell my last sure grip with my Charger and now need one for the Challenger. I have a 2.76 open (489) for now, but i need the sure grip. I have never seen a 2.76 sure grip in this case/pinion size, only 741.

Did they not make them or did they just all get gear-swapped for better gears..???

Also, were there ever any aftermarket gear sets with higher gears for the 8 3/4"...??? I mean 2.5's or ???