Am I correct to assume there is no aftermarket gears that can be put in this rear axle? Could I just swap my current 7.25 gears? I have never played with the rear axle other than to replace the gasket and fluid.
No, Summit has a few gearsets for it and yes, you can swap yours on it. That's my plan if it doesn't sell. I'll pull the sure grip unit and put my 3.23s on it and put it in the housing under my car.