Justin, Thank you for the photo. You can use the Rack'em Multi-Mount Grass Catcher - Aluminum and Stainless Steel part # RCMMS4 with the Rack'em Face Plate part # RMBS2 for the Hustler Raptor SDX according to Rack Em. There will not be any brackets or extra parts needed besides the catcher and face plate. I have attached a photo that shows where the grass catcher will attach on the Raptor. view full answer...
The Rack'Em Grass Catcher # RCMMS4-EXS1 has been confirmed to fit the Gravely zero turn mower. You will also need the bracket # RB-UN. Unfortunately we do not carry this bracket here at etrailer. Rack'Em will only sell these direct to the customer so you would have to get it from them. view full answer...
I checked with Rack Em and for your Exmark E Series with the 48 in radius deck the correct grass catcher is the part # RCMMS4-EXS15 that you referenced. view full answer...