That's the TKO-500. The TKO-600 has a .64 over drive, and there's a huge difference between it and the 1:1 ratio of 4th.Take a look at the final drive and what rear end ratio as their is not a lot of difference in the .82 final in 4th and 5th.
Ok, I didn't realize that. Thanks for the correction, guys. Not sure why one would opt for the .82, given the choice.C0V3R said:Dave is right, the 600 comes with the option of both 0.82 and 0.64 OD.