Pro King torque converter review 

I ordered a $300 converter by phone from Coan Racing 20 yrs ago and answered all their questions and expected a 10” 3500 stall but got an 11” 26-2800 that’s as useless today as it was then so I know it happens.the converter works but I haven’t checked it with a matching cam but with my set up it drove like grandma’s car

Good info to know. I never had an automatic until 2020, now have 3. When dealing with my clutches, I always just bought new entire assemblies, usually upgraded units. Too much work involved to trust anything remanufactured. I will do the same if my automatics start behaving oddly. My new replaced clutches have outlasted OEM by hundreds of thousands of miles.

I bought a brand new Hughes- Towing converter and had the same problem, and Hughes is supposedly one of the best you can get. Around 35-45 on a hill it would shutter when going up a hill, when it needed the power without a load on truck. The stator on these converters is the problem, and finding a welded in unit like factory is very difficult and mine was a regular Th 350 turbo from 1979-4X4 model truck. Only a heavy duty converter has the welded in turbines, so there is no flexing or slippage. The only HD welded in one comes factory or from B&M and then your taking a risk it's really HD and welded inside, as they all look the same, and size. Will be putting the factory converter back in before trying anything else. A 4X4 with transfer case is a monster to put in and out, it's like lifting 2 trans hooked together in one. So even spending alot of money on the best built is no guarantee, it lasted 1 year.

I'm going through this right now with a 4l80e. It's frustrating.