I have researched the threads on here and noticed a lot of builders say to block the 4th gear accumulator and leave out the piston and spring. My question is do you also leave out the check ball that is in the case beside the 4th gear accumulator housing or the one that is on top of the plate or do you leave them in place? Thanks

 

Plug this hole and leave the #1 check-ball out of case.

 

thanks, I’m assuming #6 cb in the case is the uncaptured one beside the accumulator bore. Is that correct?

 

You are correct.

 

thanks

 

Also the cup plug with the small orifice in it, make sure its free and clear. Take something and poke through it to make sure its clear.

 

I will, thanks for the advice.

 

Doesn't matter when you're killing the oil feed to it as instructed here.

 

With the 4th Accumulator Piston and Spring Omitted...
The "Orificed Accumulator Fluid" (Green Colored Fluid in GMPT Manual) will full-time feed that Orificed Cup-Plug in the Bore
instead of "4th Signal Fluid"/ "Servo Feed Fluid"/ "3-4 Accumulator Fluid" (Red Colored Fluid in GMPT Manual).

 

i (believe) i understand what blocking the accumulator does but have no idea whats needed to do it. can it be accessed with trans in the car?

 

yes,you will have to remove valve body

 

is that the case when blocking the 3-2 downshift and the 3-2 control valve also? maybe i find some vids on how to remove valve body.

 

yes.... pay attention to the v/b bolt length when reinstalling. transgo's shift kit instructions have a good diagram, they are available on their website.

 

 

To be clear, wouldnt the 4th accumulator check ball be #1 check ball? #6 would be the overrun ball one would leave out IF one installed the HD 2-3 Shift Valve.

 

You are correct. My mistake. I corrected post #2 to say leave out the #1 check ball.

 

thank you. i found good instructions on valve body removal here (maybe it helps someone):

 

If you block the feed hole in the case and leave the piston out what is the benefit in leaving the checkball out? I left the checkball as it was.

 

Its pretty much useless at that point