GS400 Supra SC400 3.26 Differential
 

Fits all GS400/300 Sc's and Supras.
Came off of a 2000 GS400 @180k. Interchangeable with pretty much all Toyota Lexus rear differentials. Longer final drive for a higher top speed.

Weld it. Stick in an LSD. Whatever.
Cheapest option before shelling out twice the amount for a TT 3.13

Quick and easy. $500 firm.
Comes sandblasted so you can powder or paint.
Also has all of the bushings and bolts in good condition.