There are so many adjustments on the side glass. Looks to me like you have the vent window frame leaning back which causes the gap shown.
The vent frame has multiple adjusting points and needs to be right in order for everything else to fit.
Also the up stop at the rear of the door glass on a 69-70 is on the rear vertical track and may be adjusted too low.
I have installed AMD side glass with no fitment problems, so before everyone jumps on the "repro parts don't fit" bandwagon, first check the adjustment.
Adjust the door glass first, and then the quarter glass to match, but that said, both need minor adjustments until everything jives and either glass can be rolled up individually and seal to everything.
Adjusting side glass is something that is hard to explain and experience makes it a lot easier.
They sent the OP CONVERTIBLE glass instead of HARDTOP glass, that's why it's important to lay the old glass over the repro glass to confirm fit and finish before wasting time on an install
