Originally Posted by AtomicZebra
Well through some research I found out there's only 1 ZF6 which is the ZF S6-650 which was used in 01 and newer Superduty's that were V-10, 5.4l V8, and 6.0l Diesel, all the same bellhousing. Also this is the same tranny in the Chevy 6 speeds with difference's in the shifter I believe for smoother and a quieter transmission, and also to be different than Ford. I thought that the 2wd and 4wd were the same but I guess the shafts are different lengths and the rear housing is different. So I'm hoping it's not too much work to disassemble because this dump truck is one really good deal!!
Think again!!! I hate to be the bearer of bad news, but the bellhousing bolt patterns between the automatic and the manual on a 6.0L are completely different, with 100% certainty. This means such a swap requires changing the rear engine cover, which requires high pressure oil pump cover removal to access as well. The manual versions of the 6.0L and 6.4L have more of a circular pattern to them, while the automatics use a pattern that appear very similar to the pattern used on 4.6L/5.4L and 6.8L engines, but are NOT identical. This is not to mention that the PCMs and the transmission wiring are both completely different as well (The manual version PCMs don't have a TCM integrated and the 3rd connector blanked). That said, you are better off selling your truck and getting yourself a manual truck if that makes you happy. The amount of money and labour you will waste is not worth the hassle.