I'm running a Mr. Gasket 3 speed shifter in my 65 C10. Non synchro tranny. They work good if you set them up right. They've got a long throw but drilling new holes in the arm on the tranny cures that. One other problem is they tend to get loose. The cross bolt that goes through the shifter and bolts to the bracket comes loose. Double nutting works for a while but I drill a hole through the nut and bolt and install a cotter key. Stays tight and shifts nice. JMHO
