1:1.46 Ratio. Bolt Holes: 4 With 3.4 Inch Diameter. This is a universal box that will fit every brand. Gearboxes are not brand nor model specific. Check all specifications and ask for more if you feel like you need prior to ordering. It takes 80-90 gear oil. A plug on the top and a small little pipe plug on the bottom right side. The top hole is where you put the oil in, you take out the pipe plug and as you pour the oil in and when it starts running out of the pipe plug hole then it is full. You only fill the box roughly half way, if you overfill the breather plug will release some of the pressure but you also run the risk of blowing out one of your oil seals so try to maintain adequate oil levels. Of course you do this with the box mounted on the cutter and in an upright position. Prior to each use always check the oil lever–an empty gearbox will fail. In some cases, a signed affidavit detailing the circumstance may be required. We strive for 100% satisfaction. If you are not satisfied with your product, please send us a message prior to opening a return or case. The item “ROUND STYLE Cheetah GEARBOX 4610 75HP 1146 15 SPLINE Fast Shipping” is in sale since Tuesday, January 19, 2021. This item is in the category “Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Gearboxes”. The seller is “colestractors” and is located in Farmington, Missouri. This item can be shipped to United States.