Did a little of my own tinkering with the backend of my dads 87 warrior. We put a 11/16ths bolt all the way thru the top carrier bolt with a pipe in between to keep it sturdy. Basically our attempt at a 89+ carrier.
Been tucked away for a few years. Took it out and gave it a bath. 1987 warrior. Chain tightener/carrier needs to be updated. (Has old 4 bolt design). As well as a new battery. After that should be good to go!
have no ide