you can buy a window crank removal tool at an autoparts store that pulls the little pin off to remove it.
with a window crank removal tool.
there is a clip on the handle you have have the knob faceing upward and use a flashlight and a butter knife to remove. The clip is u shaped.
There is a horseshoe-shaped metal clip behind the window crank. You must ply the clip out from behind the crank in order to release the crank itself. I would advise you to remove the crank before unscrewing any parts to the door (the process can be very difficult and this will save time). Some auto stores sell cheap removal kits for this.
You will need to remove the inside door panel of your 1977 Chevrolet blazer. Remove the window crank linkage. Remove the window crank retaining bolts. Reverse the process to install the new window crank.
You need to remove the window hand crank with a window hand crank removal tool.
There is a special tool for the removal of the window crank handle. This item costs less then $5.00, you can search for it online.
You need to get a window crank removal tool from an auto parts store. Simple pressed steel tool for less and $5.
They sell a window crank removal tool to open the cotter in and slide off the winow crank handle. Slide the tool under the window handle and push the cotter pin back, off comes the handle
Rotate the handle upward. Push on the door panel around the window crank to expose the shaft. From the bottom side use a window crank removal too (c-clip removal too) or a flat-head screwdriver and push the c-clip off. Gently pull the handle off afterwards.
There is a small 'c' clip on the underside of the crank. A set of needle nose pliers are handy
they make special manual window crank removal tool but you can use a screwdriver its kind of tricky though.you local parts store will have one and they will show you how to use it if you buy the tool its a breeze.and you wont damage the door panel.