I consider myself a pretty good parts changer. However during my work on my Pantera I did have questions and they were happily answered by the vendors I bought the parts from. If you think that same support will be given by seller of the ATE or Alfa spider slave I'd say buy one.
But don't expect advice from a Pantera vendor if have trouble with the install or part.
I haven't changed mine yet, in fact its one of the only mechanical parts that I didn't change after the car had been sitting since 1984 so I don't have any helpful information other than I have a stock short throw and it works fine.
Nice car by the way!
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