there were 3 different manaul trannies available in the 89-94 metro. swift has different ones but we won't get into those. if you find a 89-94 metro it will have a 3.89 final ratio if its a xfi, better freeway mileage but a little less power on takeoff. normal tranny is a 4.10 ratio. if its a convertible it will have a 4.30, that is to make up for the 13" tires they put on the vert's. so you can run either a xfi tranny or a normal one in your car just fine, 95 and up had other ratios so stick with the 89-94 tranny if they have one