How about a good Drag race 904 build discussion

Hi Fred. The reason I asked about the 3 pinion is that I have one here and it is significantly lighter in weight which would equate to a lower et. Just like aluminum drums improve et because of less rotating weight.
The concern I have is if it is strong enough with only 3 pinions. I believe that a member on here
Named Valiant Steve once told me that he used 6 cylinder planets in his 904.
I believe I had heard that the rear planet receives less load than the front planet.
I recently overhauled the 47 re in my diesel truck and from the factory it came equipped with a five pinion steel front planet and an aluminum 4 planet rear planet.

Duane