pro tree trans brake Aluminum valve body ????

[FED 387]

forgot about that thread!!!! anyway we tried it out in back to back testing(alum vs iron) same day for both transmissions/valve bodies and it (alum) was very erratic compared to the iron body put them (alum vs iron) in 2 different transmissions(identical in every way possible) and it (alum) still was screwy---so we pawned the alum one off on a guy that thought he "just had to have it" for 2 cases of trans fluid and some pan gaskets---Comp 387