C-clip vs Ford ends/bearings

[TheBandit]

I have been having a hard time determining which option is better for my application. My car is mostly street driven, but I also want autocross the car at least a few times a year and maybe do a few track days. It has a little over 400rwhp currently going through a 12bolt with stock axles, clutch type posi and 3.73s. I want to narrow the rear and use OEM discs. I'm thinking "LS1" rears because they have a decent size rotor, integral shoe parking brake and bolt directly to the GM pattern housing ends. My 12 bolt is leaking from all seals and I have also been thinking about narrowing it 1" each side to improve wheel fitment on commonly available 0 offset wheels.

I am leaning towards using Moser 7900FM housing ends with tapered SET20 bearings and custom length axles from Strange, Moser, Dutchman or the likes. But I could also keep the original GM ends and use upgraded c-clip axles. It's important to me that whatever I use be safe and reliable. I am a little concerned about potential sealing issues with the Ford ends. I am not sure if I should be concerned about knock back if I use c clip axles with the c floating "LS1" brakes calipers.



Any advice or other considerations ?