Thanks for this guide, really made it easy! I found the oil sucker I bought for my boat to work perfectly for this! Also a 3/8" breaker bar fit just fine with a normal length hex bit. Redline MTL does make this trans a bit smoother
Edit: I should add that you could probably get away with using only 1qt for the diff and 3qts for the trans. I had an entire extra 75w90 qt (may have not sucked out all the old fluid) so I just put the hose as far forward in the diff as I could and "flushed" it out with the remaining fluid. I did the same with the trans and still have like 1.5qts of it. Oh well, it'll work great in my boat!!
Edit 2: I had so much left over that I did another drain and fill! Here's the MTL that was in the trans for a day next to some new stuff.
