904 Transmission Stopped Going Into Gear

Thanks for all the input. Looks like I am in for a rebuild eventually. I might see what some shops around me charge for a rebuild, but I am down to take a stab at it. I have always been apprehensive about tearing into an auto trans, but there is only one way to learn....

Got a few things to sort out:

Rebuild Kit

I see lots of kits available from ebay, summit, etc. Anyone have a recommendation for brand/supplier? I imagine this has been asked many times, but I assume a 727 kit will not work on my 904?


Resources

I have the 1972 Plymouth Chassis Service manual.

I ordered this book:
https://www.amazon.com/gp/product/1613253354/?tag=joeychgo-20

@cannucky Is this thread the video series you recommend? Video reference, TF727 600hp rebuild


I am just in the info gathering stage here, I may make another thread when I begin the actual rebuild.

Keep the good info coming, I appreciate it!