Amazing overheating problem...desperate

This is a jumble of answers and descriptions....

Thanks...yes, thermostat is in properly... have been working on cars since 1952 and let me tell you, THIS ONE HAS ME STUMPED...laughter, insane laughter...here is another post with the approximate story:


-Lean??? Throttle body FI here (1990 Ram D100/150 2 wheel drive automatic LWB pickup)
-Kink in bottom hose? Nahhh, all have wire coils usually, mine is new w/coil
-Air pockets, nahh, drilled 3/32" hole in new stat (Tried 4 stats by the way)
-All hoses, clamps, water pump, stat...NEW (old water pump was tight-tight and clean)
-Drilled 2nd stat since problems persisted...no such luck...problem continues...this 4th stant 195degF stat is drilled now also...no change
-Water moves in radiator at temp, but thats after it blew water to hell and back and overheated so the neighbors complained about the whistling and they live 1/2 mile away.
-I shortened and lowered discharge hose so it is below radiator fill cap...bypass hose (that little 6 inch sucker) is BRAND NEW
-Definitely good stat (Stant 195 deg F.) (drilled)
-Good pressure cap (16 lb)
-No, no bubbles...head gaskets are not leaking...once the heat is normal, this truck runs all day and night flawlessly...It is 26 years old and ran flawlessly for 25 years. I went 14 years without any major repairs.
-YES, pushes water out of overflow tank then bunches of hot hot steam
-Add 3 quarts of cold water to hot radiator and gauge goes down to normal and everything is OK for the rest of the day.
-Gets savagely hot first 3 miles, EVERY morning. EVERY SINGLE DAMN MORNING FOR 3 months...intense problem for almost a year now...I am going mad and insane. Off and on for 12 years, now it won't go away. Its a clean 2 row radiator
-It has been flushed 6 or 7 times and rinsed 30 or so times in the last month! (Maybe last 2 months) losing track of time involved on this mystery...Radiator fins blown out....nothing in them. No transmission cooler (disconnected 25 years ago) Exterior tranny cooler is free and clear of the radiator. The transmission started doing wacky things 10 years ago and it still does, with band material in the pan and hilarious shifts up and down at the strangest times...but it finally gets into 3rd gear after a few miles and works fine the rest of the day. I have hauled a big loaded trailer and truck bed many times (Like 70 full loads the past 8 years) and I have pulled stumps with the truck for years as well as pulled all the windows out of my old house for replacement. Pulled down many houses, fences, and sheds with it ever since I bought it. Did a good bit of towing other trucks years ago It has some minor dents but why would I get rid of it? This overheating is maddening and makes no sense whatsoever. I am [email protected] or 1-360-465-2809

Needless to say, I love MoPar products and have an absolutely beautiful Chrysler Sebring Convertible with low miles (140,000) I had a business and it involved Dodge Vans so I have owned about 20 different Dodge 318 powered trucks and a car or two. This pickup has outlasted them all...always my personal truck. My vans usually lasted 250,000 miles.

Desperate in WA state...thanks for any help