the doghouse is the only way. there is a diagram to build a gantry in the FSM to lift the engine up and out the door to do any engine work. hinging the cab forward would be ideal, but i wouldnt trust my work. hit the brakes and it would tilt forward with me and my dog in it, no thanks. there is no access panel in back. you take the box off and can get at the transmission easily. in the wide track FC's, there are two removable vented panels in the front wheel wells above the frame, but on the narrow tracks, nothing. its 4 bolts to remove the cab from the frame, plus misc throttle/brake/clutch linkages. im thinking a shop would be proficient at this if they didnt have the gantry on hand.