Looks like brother Bill for $350 has magnum powers do a rebuild and inspection with new bearings, seals etc.
....or do it myself
...or find a used blower from one of the local club guys and send it in for rebuild but hell may as well look at a 94-95 blower with the larger inlet plenum
Just thinking out loud of options
Probably just a bad coupler $20 for a coupler and $20 for some oil problem fixed.
From what I see, MP's price on a full blower rebuild (snout, rear rotor bearings, and front rotor bearings) is $749.
http://shop.mpsuperchargers.com/MP-Services_c10.htm
The snout rebuild only is $365.
Looks like a sale is on now @ 15% off so that comes to $637 & $310?
yes they replace front and rear bearings and will even do some porting if one wishes, of course for extra $'s.