I'm hoping that I've done my last mountain pass crossing with OUT the Allison joystick. I love the retarder function on the tranny but the brake pedal ( 3 stage ) activation is not getting it done on the Siskiyou pass and others. <br/><br/> As I'm looking at collecting parts for this project I found this on eBay by taking others advise. Google the part # and see what you find. ...