The best way to test a clutch is to just wait until it starts slipping on the highway when you pull a hill. That is the most leverage the weight of the vehicle has on the clutch. When that happens just back off a bit and go down a gear if necessary. Treated this way your clutch will last easily until you can change it at a convenient time and place.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.