[AT] 4020's coming back?

[Dave Ernst]

http://albums.photo.epson.com/j/AlbumIndex?u=3009545&a=32335414

Here are a few pictures that show what I'm up to. The block is currently in 
the machine shop getting hot tanked and cam bushings installed. The rods 
will have the wrist pins fitted there also.
Now, open for discussion.
The tractor has 14,000 hours on it.
I bought the I&T manual and followed the transmission test proceedures. Step 
one was to determine transmission operating pressure with the criteria being 
between 140-160 psi.
The pressure is 140 psi, and the book says it can be increased by adding 
shims which I will do. There are several clutch and brake packs and any 
particular gear activates different clutch and brake packs. The test is to 
determine pressure loss in each clutch/brake pack(s) in each individual 
gear. 15 psi is the maximum loss acceptable and then repair is recommended. 
The worst case scenario in any gear sequence I found is 5 psi. Mostly 2-3 
psi.
Given these circumstances and the usage I described previously, what would 
you do?

Dave in Nevada