I have a Dana 300 that I got along with a T18 I have another thread about. I started looking at the 300 today to see what needs to be done with it. With it in neutral, I couldn't get anything to turn so I figured the shafts were frozen. Once I removed the input shaft support along with the input shaft and gears, everything started to spin. I found the input shaft to be the only frozen part in there.
I removed the snap ring and tried to pull the shaft out of the support but it won't budge. The rear output shaft gear was the one that was pretty rusted looking, but again its mostly just dirt and gunk. It has very little pitting on just a few teeth, but I was able to clean most of it off.
And after a few minutes with the bench grinder-
The top of the case also has some of this surface rust/ gunk in it, so I'm wondering if this thing got some water in through the front input and it sat upside down. The top of the case looks like this-
The only other gear with gunk on it was this one and it cleaned up nice-
So I put the input support/ shaft in an oil bath and I'll let it sit for awhile. I was thinking I would try Evapo-Rust and just pour it into the top of the case and let it clean that up.
I have a question about the gears and shifting. I want to make sure its going through all of the gears correctly because I can't get it to shift onto some of the gears. I know about the poppet balls keeping you from shifting into certain gears, but I'm not familiar with the function of the TC enough to know if its working correctly. Also, looking at this thing upside down through the bottom cover while I'm trying to pull on the shift rods is confusing.
In all the pics, the rear of the case is at the top of the pic, and again I'm shooting through the bottom cover. Also, the input shaft has been removed so the rear output gear on the input shaft is missing from the lower left of the case.
In this pic, the front output is turning and the rear isn't-
I don't know if thats correct because I don't know why you'd ever have just the front turning?
In this pic, both front and rear are turning. Is this 4wd high or low?
In this one, only the rear is turning-
In this pic, as hard as I pull, I can't get the clutch sleeve to move down onto this gear. Is it supposed to?
Thanks for any help. I tried running this thing through the gears as much as I could trying to find out what gear was what, but with it upside down and without actually having a shift lever on it, it was very confusing to me.
Thanks for any help.