I think I know where their is one. The only thing is I don't know if I can pry it away from him and if I do it will be about $500.00. (not cheap) John Hanson
Looks like 1967 and 1968 GM window hand cranking parts will interchange. if I know where to look I should have some 1967 impala parts that would fit. John Hanson
Gary Hollander says any 1965 to 1968 GM auto 2 dr. and 4 dr. ht. or convert. vent window will fit. Not Buick riv. and sedan. not Pont GP. I will have to check out the other parts. i think the window has to be out of a conv. John Hanson
Check and see I think all GM full size cars used the same vent assy. I know from 65 to 67 they did. If get a chance i'll check my Hollander books and see. John Hanson
Have 14x6 wheels but the stand off is about 3 9/16" if I remember the no. is 850 will not know untill get them down .there up buy the ceiling behind 2 cars. unless you are interested I don't want to take them down. John Hanson