In search of a clutch bearing retainer for 4 speed 318

I am doing some looking around for a friend of mine; he busted the shaft off of his release bearing retainer and needs a new one. It is for a 72 4 speed, with three bolt mounting. So far the only aftermarket ones we have found are four or five bolt. Wish I had pictures, but my outdated phone doesn't have the required technology. Thanks in advance to anyone who may be able to help!