What mod next?

I'm thinking drive line before i redo my engine.

A new T5 with all that geforce stuff and the stronger case.

or the rear end?

Speed Concepts - M-4006-AXLEKIT - 1999-2004 Mustang GT/Bullitt/Mach1 and all 1999-2004 Cobra 8.8 rear end axle complete kit 31 Spline & gears

I kind of want the new transmission first because the one i have is complete junk. Well after new clutch, flywheel, and steeda 3 piece clutch cable kit it still blows. I think its time for a brand new one. The rear end i might just try to find a cobra rear at a junk yard maybe. But then im going to have to buy new rims and tires to fit the bigger break rotors.

Afterwards im looking to build a 4.3L long rod stroked out monster stage 3 everything. and then buying an 11# pulley.