Replace front cab glass on camper shell?

I would like to replace the front cab glass between the cab and the camper shell but when I took the outer seal off which is made of metal and has about 30 screws, there's no way that I can see to get the actual glass out there's no other screws or anything. Anyone have a shell like this? Can't figure out the brand. For a '99 SR5. Says ll inovation) on the sides.

 

I replaced a side glass a long time ago, 1985, with an aluminum frame. Had to take it out of the shell and spread it apart at the seal to get the glass channel open to replace the glass. Picture would help see your problem.

 

Great. Thanks. Simple apparently wasn't in the equation

 

Were you able to get it out and replaced?

 

Haven't even tried I'm just trying to replace it with plexiglass a different size so that I can move from the cab to the back area without getting out of the truck when I car camp.