Originally posted by qtiger
JDM ITR transmissions have a MUCH higher final drive than USDM.
It does also have lower ratio 4th and 5th so that you aren't at 6K RPMs on the freeway.
Do you mean a shorter 4tha dn 5th cause the JDM are short than the USDM which means that on the freeway your RPM's are going to be higher than that of a USDM
JDM tranny................USDM tranny
S80............................Y21 Y80 S80 S4C
3.23............................3.23.............. ........1st
2.105..........................2.105.............. ......2nd
1.458..........................1.458.............. ......3rd
1.034..........................1.107.............. ......4th
0.787..........................0.848.............. ......5h
3.................................3............... ............Reverse
4.785..........................4.4................ ........Final