I'd suggest removing your original pressure plate and trying to match up the bolt holes with the potential replacement item. If the bolt holes align, it will bolt onto your flywheel. The big cast iron bellhousing on your Burb should accomodate either clutch- - - -later models with the small flywheel and the close-fitting aluminum bellhousing won't clear an 11" or 12" pressure plate. You might have to find the correct-depth throwout bearing to match the release fingers on the pressure plate. There are at least two different lengths of throwout bearing, and the design of the pressure plate release fingers will determine which one works right.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!