Okay here is the deal, my car WAS mini tubbed. Took everything out and replaced with new sheetmetal. Bought an 8 3/4 housing that was supposed to have been from a Challenger. Restored the rearend with 3.23. posi chunk, new wheel cylinders, backing plates, paint, etc. After all this I go to put the rear end in and it is to narrow. Center to Center on the perches is 44", my car requires it to be 46". I don't want to move my springs. Does anyone have a housing they can measure for me or does anyone have any idea what is up?