There will be no holes to drill, the cab mounts use existing holes. Fully enclosed cab with an ABS plastic hard top. Clear shatter resistant Lexan plastic is used in the rear curtain, side doors and the windshield for maximum visibility. Forward inclination of the windshield minimizes glare and contact with falling snow and rain. Doors are hinged with latches so getting in and out of the cab is easy and quick.This hard top cab enclosure is not a genuine Deere item. It is manufactured by one of the leading aftermarket cab, canopy and sunshade manufacturers. It is made in the USA. Cabs are designed to be 79.5 depending on tire size. We recommend garage\shed openings of 80 or above for the installed tractor cab. This cab is NOT COMPATIBLE with the newly designed ROPS on the 1-Series Tractors. (These new ROPS lean forward into the operators station), therefor, the cab and ROPS are not compatible. The item "Original Tractor Cab Hard Top Cab Enclosure Fits John Deere 1023E & 1026R" is in sale since Wednesday, August 7, 2019. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Cab Enclosures, Enclosure Parts & Glass Panels". The seller is "thegreendealer" and is located in Ashmore, Illinois. This item can be shipped to United States, Canada.