I have the easy ride seat off my 351 and am starting to take it apart. Looking like I need a new screw, rubber springs and maybe bushings. That doesn't count a seat pad. I then contemplated saving the easyride in case I want to return to stock specs and putting on an aftermarket seat. I even found one in a red orange that might or might not be close to Case Flambeau. Very few of these seats give any info on mounting holes. From Yesterdays tractors they show the bottoms. Most look to have a centered two bolt mount. One shows a mounting plate with multiple slots but none have the 6"w x 4" deep mounting pattern my old seat has. I was just wondering if anyone else has used an aftermarket seat and how they fit. FYI THe tractor is used on 50 mi. tractor rides. THe back support might be nice.