How do i replace the triangular piece of glass in the rear door of a 2000 GMC Jimmy?

Aside from the glass that other materials do I need to replace the glass. Please include any special tools that may be required.How do i replace the triangular piece of glass in the rear door of a 2000 GMC Jimmy?basic rachet and socket set metric,remove door panel,remove the window glass the (one that rolls up and down) from regulator,remove metal bracket that separates 1/4 window glass and door glass,look under weather stripping for hidden screws or fasteners,becareful door panel sheet metal is sharp,wear long sleeve shirt if possible use vaccum to remove broken glass if any or gloves good luck.How do i replace the triangular piece of glass in the rear door of a 2000 GMC Jimmy?The best thing to do is put some liquid dish soap on the seal so the glass will slip in easily. Use either a plastic or wooden flat stick to aid in positioning the outside %26quot;lip%26quot; of the seal. Place the lower edge of the glass in the seal channel and then work the edge of the seal over the outer (side nearest you) side of the glass using the stick. Thin nylon cord can also be used if you do not have a stick as described. Feed the cord into the channel all the way around after lubricating with a little soap, place the window against the seal and feed it into the seal as you pull the cord straight toward you. It sounds a little confusing but it is easy for small windows as you are working on. If all else fails...go to a glass shop. They would have it done quickly and cheaply. I provided the how-to in case you are a DIY type.