I hear you! Like I said....Different environments, I don't buy/pay for 4L80E Hubs....I acquire them for free most of the time.
Th400
- Thread starter impala454
- Start date
So got the used parts. I bought double pistons so I have spares. Checkball in drum=no checkball in piston?
Attachments
Correct.
So this is what I will use in my th400.
Deluxe rebuild kit.
https://www.amazon.com/TH400-Transmission-Deluxe-Rebuild-Level/dp/B010R0GSR6 but with scarf cut teflon seals instead
Sonnax nitrided forward clutch hub
Th400 smooth direct drum
New 34 element sprag
Spiroloc from 4l80e for the outer race
New low roller clutch
No walk bushing with bearing to rollerize the output
The pump spring from the transgo 1-2 kit
Heavy duty springs for the direct drum from same transgo 1-2 kit
HD snap ring from same transgo kit
Either the B&M plate or a modified oem plate
Going to change the bad planetarys to the new used. Use the alu pistons I bought.
Deep alu pan with gm filter tube bolt/spacer for deep pan.
Sounds like a good start?
I will try to dual feed it internal
Input shaft is little over what I think is reasonable so will use the oem. Or am I looking at wrong parts?
Deluxe rebuild kit.
https://www.amazon.com/TH400-Transmission-Deluxe-Rebuild-Level/dp/B010R0GSR6 but with scarf cut teflon seals instead
Sonnax nitrided forward clutch hub
Th400 smooth direct drum
New 34 element sprag
Spiroloc from 4l80e for the outer race
New low roller clutch
No walk bushing with bearing to rollerize the output
The pump spring from the transgo 1-2 kit
Heavy duty springs for the direct drum from same transgo 1-2 kit
HD snap ring from same transgo kit
Either the B&M plate or a modified oem plate
Going to change the bad planetarys to the new used. Use the alu pistons I bought.
Deep alu pan with gm filter tube bolt/spacer for deep pan.
Sounds like a good start?
I will try to dual feed it internal
Input shaft is little over what I think is reasonable so will use the oem. Or am I looking at wrong parts?
If I want or need I can remove checkball in pistons and plug with a set screw?
Yes sir!
Thanks!
What do you think of my parts selection?
I don't know what to say about the rebuild kit? Who makes the frictions? Those could be Raybestos or Allomatic which I wouldn't have problem with, But if they're some no name trash from China.....I'd be concerned.
Alto frictions ans steels. Transtec gaskets.
Since Im in Sweden I have to compromise some but hope I have decent parts now.
Really appreciate your input! Thanks!
Found something strange?
Bought some alu pistons from a local guy here in Sweden.
One of them is different and dont work on the direct drum. Havnt tried it on the forward. Need to buy a tool to compress the springs. The diameter on the inside is smaller and itsnot machined as the others. I think the date code says 63 so it must be a very early piston? Was they made different in the begining for forward and direct? The info for the nr says its for 400 and the outside looks identical to the other pistons.
Attachments
Some early 400 pistons was made the way like mine I found out. Its machined so id its same ad the other but will use it on direct so going to leave the seal anyway.
Next problem got early planetarys so my flat snapring for the outputshaft was wrong luckily the guy that sold me them had correct early tapered snapring.
Made a tool for the drums.
Next problem got early planetarys so my flat snapring for the outputshaft was wrong luckily the guy that sold me them had correct early tapered snapring.
Made a tool for the drums.
