They are called, "interior windshield hinge brackets" here's a link,
Kentrol 30408 - Kentrol Polished Stainless Steel Interior Windshield Hinge Brackets for 76-95 Jeep® CJ & Wrangler YJ - Quadratec
You'll also have to loosen the bolts in the spreader bars (the ones that run from the windshield, back to the roll bar). They are located in the middle of the bar, under the padding.
Also, a little trick that I used when adjusting my windshield, use a ratchet strap (hooked to the windshield, and to the back of the tub) to hold the windshield in place wile you tighten everything.
And one other thing, most soft tops call for a specific measurement of 75-1/8" from the top of the windshield frame, to the back of the tub. I found this to be a good starting point for adjusting the windshield.
When I did mine, I used two ratchet straps(one on each side), and a tape measure to get my windshield pulled back to that 75-1/8". That way, I didn't have to mess with constantly opening and closing the doors to check each side. Once it was pulled back, I then checked the door gap, and only had to make minor adjustments, and tighten everything down.
Oh, and one word of caution, there is a good chance that your windshield hinges will be siezed. If they are, and you try to adjust the windshield, you could bend the hinges. It's a good idea to spray the hinges with blaster (or your prefered brand of penetrant), and keep an eye on the hinges to make sure they don't bend.