4r55e Valve body L retainers

[medefries]

Hi guys, I have a 96 xlt with a 4r55e transmission and 4.0 v6. I have read the diaries on the a4ld and 5r55e valve bodies and they are very helpful in locating these pins and other retainers. What they don't show or explain is where these pins engage the valves. They obviously retain them but do they engage a slot or bump a shoulder? It just seems there must be more to it than simply dropping the pin through the hole on the valve body. Anybody have any good info or pictures? Thanks.

 

[BrooklynBay]

https://www.wittrans.com/Schematic.aspx?Transmission=A4LD/4R44E/4R55E/5R55E&Schematic=9

 

[medefries]

Thanks for the diagram. I still can't make out exactly how to install the pins. I have a good chart for which holes to use on the valve body, but do the pins engage a groove on the various valves? Are they automatically lined up when they valves and solenoids are fully in place? What do I look for in the hole before I drop in the pins?

 

[BrooklynBay]

They are used in certain areas to keep a section in a specific position. Take a look at the diagram above. You will see that they are in the center of a bore to hold a part in the middle.

 

[medefries]

Thanks BrooklynBay. I'm probably over thinking this but I still am unsure. For example, in the lower right corner of the diagram is the inboard/ outboard revererse modulator. The L-pin appears to engage the plug #6. That plug is actually captured inside the spool RA-1 (with the spring) and is not exposed for the L-pin to engage. So, can I assume that with the valve assemblies properly in their bores and the U-keepers or solenoids in place, will the L-pins line up properly just by dropping them through the appropriate holes in the casting?

 

[BrooklynBay]

They will align properly just as long as they are installed in the correct locations.

 

[medefries]

I thought I sent a thanks to you yesterday but I must have pushed the wrong button. Anyway I will not be back to the project for a couple days. Thanks again. I'll let you know if I was successful.

 

[Poorbucktoe]

https://www.wittrans.com/Schematic.aspx?Transmission=A4LD/4R44E/4R55E/5R55E&Schematic=9

Hello
Would you please repost the above img I keep getting a 404 error message
Thanks

 

[transman304]

These might help. This is from Ratiotek a paid subscription. ATSG is basic and very seldom updates,but when they do you have to buy another manual. Good luck.

 

[Poorbucktoe]

View attachment 161257 View attachment 161258 View attachment 161259 View attachment 161260 These might help. This is from Ratiotek a paid subscription. ATSG is basic and very seldom updates,but when they do you have to buy another manual. Good luck.

Thanks this helps a lot. A misplaced pin may be causing a no reverse problem that your familiar with from another thread.