l am trying to see if any one may know if the presure plate hole's line up from the trx250r with the 400ex clutch presure plate or if the trx450r or er 5 hole will. the reason i am asking is i am looking to try and come up with away to make a lock up clutch by using axr400 clutch cover . any info would be great, thanks for your time and happy thanks given to the atv riders.com