Hello all - I am J-Modding a 4R70W before installing in a custom project and have hit a speed bump. The trans I bought is a rebuilt Frankenstein, though I am only concerned with the valve body and separator plate for the J-Mods at this point.
I posted a pic below to show the oddity in this RF-F6 main control's separator plate: the lack of a #5 hole, and a large slot for #11. The plate does not appear to be modified. I have not seen any online photos of a plate with this configuration.
My question is if this plate can use the J-Mod hole in #5 (and all the others) but leave #11 alone?
I understand how the transmission works, but I have no experience in how the flow restrictions actually affect timing in this design. I'm concerned they might create weird issues with shift overlap or flare. I have searched for hours with no answers. Thanks for any help!
Background trans info:
None (missing - unknown original app)
RF-F7SP-7006-AA (V6/small block pattern)
Main control (VB):
F2AP (aluminum - will upgrade)
1-2 Top/bottom springs:
plain/dark (will remove bottom)
F2VP (aluminum - will upgrade)
2-3 Bottom spring:
Plain/dark (will remove. Place in 1-2 bottom?)
National 5286 (appears to be 2.7")
F6 (4.6 ohms)
F6 (24.5 ohms each)
F5 (13.5 ohms)
Output shaft housing:
F2TP (short AOD, right? Will use AOD/C4/T5 yoke)
'96-'97 ("reusable gasket", with sump, without drain)
Very good. Appears rebuilt with TransTec VB
gaskets. Little pan residue, nothing on magnet, nothing in filter. New (?) valve body with zero wear or scuffing on shift/pressure valves. No aftermarket valves. Output shaft ratchets when turned in 'reverse' = mechanical diode?
Plate removed from RF-F6 valve body: