hard shifting 833

GL-5 will not agree with your 4 speed...use GL-4
I use amsoil myself with no problems
If you read an old service manual they will state dexron came in them, and if they were noisy, or whatever, use gear lube
right there, to me, thats mopar saying dexron wasnt such a great idea
Its really not that great of a lubricant...go with the GL-4