T56 vs TKO600 Wich one is better ?

[white79bu]

I have a t56 in my Malibu. I am running a 4:10 gear with a 26" tire. I have the .50 6th gear and my car runs around 2000 rpm at 75mph. I love it. I don't use that gear unless on the freeway but it comes in handy beause you can run with the flow of traffic.