Replacement Universal Fit T-90 Gearbox that fits several multi spindle rigid rotary cutter decks. Most 8' and 10' multi spindle decks use a divider between the drive gearboxes to transfer power from the tractor. This gearbox features 1-3/4" X 20 spline shafts and has a 4 bolt mounting pattern that is 6" on center. This gearbox includes a vented breather cap. This is a 1:1.21 Speed up ratio gearbox. *****Please note this gearbox is shipped dry and will require filling with gear lube before using!***** We sell many replacement universal fit parts. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. Part Numbers:01-068 We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information. Your satisfaction is important to me, if you have any questions, concerns or comments please let me know, I will do everything I can to answer your questions, correct your problem and help you out.!