The transmission nightmare continues. Set the new front pump next the old, check to make sure they were the same, then I transferred all the pressure control pistons and springs to the new pump. Clean everything real well, put the gaskets in place and start to slide it over the shaft and it goes half way and stops.
My thoughts were the rubber o-rings might be a little tight so I carefully bumped it with a rubber dead blow hammer. Nothing. Pull it back off and look it over again and come to find out the inner diameter on the new pump is smaller than the old one but only on the front portion.
Set everything down, got cleaned up and went for a ride on my Harley. Almost didn't come back.

Best thing you could have done Walk away from it! It helps.
Are You using Alignment Pins? I made a set from some bolts with long Shank just cut the heads off and shaped them into Bullets on the Grinder. Also i think There is an Alignment tool for the Pump itself. Its not really required But My Buddy has a deal he uses. the last link I posted shows a Picture of one.

Please Take Pictures of the problem as I haven't ran into this one yet in My learning how to rebuild Turbo 350's. Just ordered a Bunch of New Tooling for rebuilding Transmissions instead of Borrowing my buddy's stuff.
Been looking at a Big Bushing driver set on Ebay I would like to get next.
Also Going to build My own Transmission assembly Table out of Iron which is gonna double as a Welding Table when not being used been wanting to do this for a while now but I just got The Transmission holding Build up fixture so Now I need a table to mount it too.

http://www.ebay.com/itm/GM-Transmission ... mh&vxp=mtr

http://www.ebay.com/itm/GM-Rear-Clutch- ... 5731.m3795

http://www.ebay.com/itm/Universal-Trans ... 5731.m3795

http://www.ebay.com/itm/SST-1097-Front- ... 5731.m3795

'68 Coronet R/T wrote:After some not so gentle persuasion things started looking better:

Grill support upper left adjusted.JPG

Grill support upper right adjusted.JPG

I will be glad when this is finally painted so I can put it together one more time and say goodbye.

I use My Airbrush after feathering out minor damage sometimes, If it will Hide? rather than repainting whole Panels No matter what you do when Installing smaller pieces Paint gets damaged no matter how careful you are. Goes with the territory of building 50 year old cars I think. Love My Iwata it does epoxy and Primer just as good as it does Base and Clear. I wanna get a Iwata Mini gun one of these day's.

I have an Iwata Airbrush but have never used it. Still new in the package.
Guess I associate it with having artistic ability and so I'm allergic. LOL

Ya I bought Mine when I thought maybe I can do that too? Nope Not an artistic bone in my body either, But Hey its great at fixing Paint Chips! lol

Reading other thread it sounds like you found the Problem with the Pump?

Yes, I hope so.
The owner is not sure what year his motor or transmission are since he bought both of them from the same guy who ripped him off.
Turns out the transmission must be a late 80s date since it has the larger input shaft. Apparently the earlier years had some issues with the smaller diameter shaft so the increased the size in the mid 80s.
All the electronics in this transmission have been removed or disabled. I am using the same springs and valve bodies from the original pump in case they have been modified. It seems in all the reading I have been doing that some people use a hydraulic lockup rather than the electronically controlled one.
I have rebuilt one TH350 in my life but even that wasn't to the depth that BAM55 went to on his. Manual transmissions, I have done a few of those with no issues.
I should get the new, new pump later today so I'll see how things go.

Ya It sounded Like you were messing with a Lock up as soon as you said different size input shaft. Personally I like Lock up Transmissions especially for a Mild HotRod nothing thats gonna be raced just a few burn outs now and then. Great on Gas

I have built a couple Turbo 350s now and a 700r4 and a Calvins 5 speed out of his Stang Im not afraid of any of them Planning on doing the 727 in my Chryslers too Its just all the special tooling for each one that bothers the crap out of me. and its so expensive!
I have a Budy that builds Transmissions for a living around the corner when I have questions or need a special tool I can always call on him so I am lucky. He hates it when I ask too many Book questions though tells me shut up and watch and I do then I tell him thats what got me here in the first place! and then I come home and go read the book some more.

Got the new pump and torque converter installed and the transmission back in the truck. Started to put fluid in and my pan gasket is leaking. Ugh!
Fired the engine up long enough to suck what fluid I could out of the pan and into the system and dropped the pan.
Will put a new gasket on and try again. Its one of those cheap aftermarket chrome pans and hopefully I can get it to seal.

Dennis,
Does your transmission buddy use any sealer on his pan gaskets. I have heard people advocate no sealer and others who use it.

New pan gasket helped and everything looked real good for a couple of days but now I have a drip from the dipstick seal.
Apparently the torque converter oil is slowly draining back into the pan and trying to find its way out.

Then the ECM on the airbag controller went out - AGAIN! Dried checking and double checking grounds, connections and wire routing and couldn't find anything wrong. After talking with the manufacturer I had to pull the main wiring harness and toasted ECM to send back for testing.

Plan now is to do body work and get this thing ready for paint. Material order for primer, paint and clear was over $1000 and that was not for brand name top of the line material. Those prices were at a $1000+ just for the color.

'68 Coronet R/T wrote:Dennis,
Does your transmission buddy use any sealer on his pan gaskets. I have heard people advocate no sealer and others who use it.

Nope no Sealer just the Gasket is all I use him too sorry for late reply.