742 sure grip parts

[4-speedfastback]

well I'm into my 742 pig ,  and every thing looks great with the exception of the clutch plates in the suregrip unit , one side looks ok the other side has score marks on every plate around the holes in the center where the axles pass through . so whats the best source for these plates ? i know mopar makes them still . is there any other manufacturer  . Mancini's shows  a thick set and a thin set for two different prices whats the difference .  thanks for the info. Tim L.

[1BAD68]

this is where I got mine...
http://members.aol.com/doctordiff/8.75.html