Installing reduction gears in my Jimny JB74 Gen 4, Hi -1.7:1 low – 4.7:1 ジムニー 管理人 2024年11月14日 · Comments off にほんブログ村 In this video we show some clips from the install of my reduction gears into my Suzuki Jimny Jb74w Gen 4 and we show the before and After with 30” tyres on. にほんブログ村 #sierra Gears gen 4 JB74 jimny Reduction Sumo sumo gears suzuki