[andy669]

I dont have any input on the different differentials, I have a spool. I dont know much about mini spools, I have seen them in dirt track circle cars, never in a street car.

As for C-clips, they are what retain the axles in a stock 8.8. NHRA rules mandate the use of an aftermarket axle retention device(c-clip eliminators) when going faster than 10.99, or while using a locked differential. The Ford 9" uses plates that are held in place with a pressed on ring. These plates bolt to the rearend housing and hold the axle in place. It is not recommended to use c-clip elims on the street, they are not meant to handle the side to side load street driving puts on them.

Hope this helps

Andy