Well my t-5 is about to blow

, would you guys believe a reputable performance shop, jpumkin may know,(tx jam) told me my reverse synchro was almost gone, and in bad shape, my tranny makes a noise but shifts fine, and just does the WELL KNOWN slight grind to reverse, unless you do the above directions, youd think these guys would know their stuff.
Thing is my t-5 makes a clicking noise in every gear, slightly in 4th, but shifts bada$$ i dont understand?? probaly about to go way shouth huh?