yea the tricky bit is puchs got the brake and sprocket on the same side, tracs don't. you basically lose the pedal side stuff entirely, and gotta finagle a brake stop tab onto the right hand side. I've used a bolt through the swingarm or hose clamps before but bolt's sketchy to the swingarm structurally unless you weld it in, and hose clamp is sketchy in general cuz when it breaks your drum'd spin, pull the cable and lock up hard.
sprocket size is also different enough gearing can be tricky. I think theyre the same width almost and same axle diameter, same chain size, so you could slip it in and it'd work, just no back brake no pedal action and bad gearing. front one's easier, especially if the brake tab lines up.