The old 60 X frame could flex when jacked up and allow it to go in gear?
Check for something loose or bad driver side motor mount. IIR the column shift linkage is adjustable...
I dont have the column anymore so can't look at it on mine..
just a thought..
__________________
ECM member.
2008 Outlaw Pontiac Drag Series Champion
MANDRA
Do it now fool! Life is short.
69 Grand Prix/3163lbs / IAII 535 w/ Tiger heads by Gaydosh....9.35@ 144 so far..
through mufflers. 1.26 60'.
Going back to track with pump gas engine....
My 60 Ventura retired to street/strip duty..