What would you guys do? I have a 9" rear end that came out of a TTA with parking brake assembly, and a 4" drive shaft, but I also have a Brand new NOS 3.27 Ring and pinion and carrier. Which should I put in? The gears that are in there now are really noisy on decel. I plan on getting to High 10's, with a Trans brake, and slicks also... Thanks. Dave