55.2-59 Finding neutral

[popeyestruck]

Put my motor and trans back in the chassis last night . This morning I hooked up the driveline and the transmission is in gear. Right now its a rolling chassis that wont roll. I connected the clutch arm. I press the clutch and can move it around but I'd rather have it in neutral. How do I find neutral with no linkage connected? I figure there must be an easy way but I dont know it. I have the cab mounted and I'm doing all the underneath work before I get ready for paint. Stock 3 on the tree transmission. Thanks in advance