Anyone that has owned a GMT900 for any length of time has probably had to replace a door handle, or 12... especially if you have kids.
I remember several years ago seeing a company that made solid billet aluminum door handles for these rigs but they don't appear to be available anymore, at least it couldn't find them.
What I did find was these...
Buy A-Premium Upgraded Metal Exterior Door Handles Compatible with Chevrolet Silverado 1500, Tahoe, Suburban, Avalanche & GMC Sierra 1500, Yukon & Cadillac Escalade, Chrome, 4-PC Set, Front & Rear Side: Exterior Door Handles - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
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They still have the plastic ends but the threaded inserts used to bolt them to the door appear to be deeper than stock and the actual handle is solid metal so the hinge portion along with the mechanism that actuates the rod is all metal.
I installed them yesterday and had to slightly adjust the arm that connects to the rod because it was keeping just a little too much pressure on the rod and the lock wouldn't open after being engaged. Kind of like when someone pulls the handle at the same time you are unlocking the door.
After adjusting the arm slightly the handle work great.
I will say that the spring is stronger and the handles them selves are substantially heavier than the OEM.
Of course at this point I have no long term use on them but they just feel heavy duty compared to the originals.
No pics because they look exactly the same as stock when installed.
They also sell them for the GMT800 as well apparently, just FYI for anyone who may be in need. I have never personally owned an 800 so I'm not sure if they suffer from the same issue.