You can probably find an inexpensive one at your local parts place. I have one that is wood and one that is aluminum.

If you get it close and get the input shaft started you can sometimes push the clutch pedal in a bit and it will slip in easily.

Tom W

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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.