how can I know what the rear axle ratio is on my 1999 Isuzu Amigo two will drive. 2.2. 5 speed . I'm partying one out and need to know what the ratio is thanks

Option codes added when possible, but may not be found on all years or models. Left hand side of fire wall there is a sticker with 3 digit codes. Isuzu option code 6NW - Final Gear Ratio 41/11 (3.73 ratio). Isuzu option code GT5 - Final Gear Ratio 41/10 (4.10 ratio). Isuzu option code S7C - Final Gear Ratio 43/10 (4.30 ratio). Isuzu option code HC6 - Final Gear Ratio 41/9 (4.56 ratio). Isuzu option code S2J - Final Gear Ratio 43/9 (4.78 ratio).