i found this on the net and i thought it might be helpful for us here
this is the site i found it on
http://www.turbomagazine.com/tech/0804_turp_kia_sportage_s2000_garage_tech/final_drive_ratios.html

Vehicle Year/Model Final Drive
'94-'02 Kia Sportage 4x4 (front axle) 4.778:1
'99+ NZ market Kia Sportage 4x4 (front axle) 4.625:1
'94-'97 Miata 4.10
'99+ Miata five-speed (4.10:1 on automatic starting in 2000) 4.30
'87-'88 Mazda 4x4 truck (front axle) and Kia NZ Sportage optional 4.44
Mazda RX-8 4.44
'79-'85 12a RX-7 and ('99+ six-speed Miata) 3.909
'79-'82 RWD 626 five-speed ('01+ Australian six-speed) 3.636:1
Kia Sportage aftermarket gears are available 4.875:1, 5.125:1, 5.38:1