Just for you
went out to shop and slapped it together. (2) 3/8-16 x 8" bolts (or longer, maybe some galvanized carriage bolts for more stroke?)
I kept watching this one guys video over and over and rewinding it and finding that spot where he just kind of laughing at everybody and calling them rookies but all of a sudden pop that pump comes flying out and I was wondering how he did that so I kept watching it and I think he just kind of stuck his screwdriver in from behind and gave it a little pop and it flew out.View attachment 1715228198 Just for you
(2) 3/8 "thick" washers, or any washer really (2) 1-1/2" or larger 1/2" drive sockets, the bigger the better, screw the bolts fully into the two threaded holes in the pump cover (9 and 3 o'clock holes) and in synch, slide hammer the pump cover off!
I did my buddies turbo 350 and it was seemingly exactly twice the parts!? Which was weird cuz you know it's kind of the same but different.
Could be the high clutch. That's the weakest link in these trannys. I've had 2 go out. When it shifts from 2 to 3, the kick down band releases and the high clutch is applied. Then you are in 3rd. No high clutch, no 3rd.
That’s a great trick to get the pump off. I looked at all the parts stores for a slide hammer that would work couldnt find anything. I spent less than 5 dollars at Lowe’s and made a tool. This worked great as well.View attachment 1715228198 Just for you
(2) 3/8 "thick" washers, or any washer really (2) 1-1/2" or larger 1/2" drive sockets, the bigger the better, screw the bolts fully into the two threaded holes in the pump cover (9 and 3 o'clock holes) and in synch, slide hammer the pump cover off!
have access to a machine shop, I used exhaust tubing and a big washer welded up, and use the handle from a bearing/seal driver kit for driving out/in the converter pump bushing. Not sure I'd wanna make a driver for all the various bushings though! 
I read the books 10 years ago and have done at least 40 Transmissions since then the first transmission that I did went in an outlaw Hemi super stocker with 900 horsepower it had already been done so I just checked clearances and replaced frictions but it never blew up nor any of my other transmissions if you'd like to contact me feel free
Another possibility is, if you are near a community college that has an automechanics program, you can take an automatic transmission class and rebuild it in class. My friend did that with good results.
That muck in the pan is all the seals and bands and clutches you're going to replace LOL when you take all that stuff out just set the aluminum shell out on the driveway and spray a couple bottles of Awesome from The Dollar Tree at it and hit it with the garden hose at high pressure until it's clean scrubbing may be necessary. And reassemble.
Without the wearable Parts like the rubber and the clutch material what's left is aluminum and machine Steele. You will clean everything with Degreaser and possibly a solvent and dry and treat with a lubricant. Like I would recommend a big massive generic jar of Vaseline LOL believe it or not because that's what's great for reassembling all the seals and everything. I just sprayed the hell out of mine with WD-40 and after I had everything cleaned. That's not meant to do anything but clean it more and temporarily keep it lubricated because WD-40 is a cleaner more than a lubricant of any kind. At least the way I use it. if you're going to store it for a long time maybe other precaution should be taken I don't know I don't let things sit around.
honestly I did my four-speed first before I tried this automatic 904 which of course is just a smaller version for our purposes hear of the 727 sharing the same valve body. If you can Master popping that pump out of the automatic and not disturb the sprag in the bottom of the case LOL cuz those little bearings and can pound out and pound in the bushings nicely if they even need to be replaced? It would seemingly be even easier than the four Speed which in itself was quite easy.
