Ratio listed are for a 4.86 ring and pinion. These gears are used but they have a lot of races left in them, if you are looking for new gears these are not for you. IF YOU'RE LOOKING FOR GOOD USED RACE PARTS SAVE ME IN YOU SELLERS AND CHECK OUT MY OTHER AUCTIONS! The item "5 sets of quick change gears ump imca dirt late model sprint car scs winters" is in sale since Monday, May 14, 2018. This item is in the category "eBay Motors\Parts & Accessories\Performance & Racing Parts\Auto Performance Parts\Chassis, Suspension & Brakes\Other".The seller is "njc_raceparts" and is located in Northville, Michigan. This item can be shipped to United States.