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I have a 95 F-150 XL with a 5-speed transmission, 45,000 miles. I haven't owed it that long and don't know much of the history. Today was the first extended drive I've taken the truck, about 120 miles. Everything was fine on the way out. About 3/4s of the the way home, I noticed during a shift into third a real quick grinding, sounded like a buzz. I never had this happen before. Then upon subsequent shifting, in and out of third, I heard the grinding, sometimes short, sometimes a little longer, sometimes a quick buzz in 2 or 4 also. Then I started to really baby the thing. Everytime I slow below 30, it would sound like there was plastic snapping, less with the clutch in. I am looking at the transmission or is something blowing apart with the clutch? Thanks guys
Update. What ever it was has let go. I take the truck for a mechanic to look and give me ideas. He was suggesting the u-joints might be locking up because it looks like the truck sat all the time.
I almost made it make home when it sounded like a big zipcord going off. After that the truck no longer had any go left. I was able to drift a pull off across the road I live on. I can't get the truck to move at all. I figure I would try 4wd, with the same results. I tried 4lo and was able to limp the truck up the road home. Why was 4lo able to get the truck to move and not 4hi? Was my problem in the transfer case then?
did it move normally in 4lo? or was that different also? 4hi and 2hi use the same output drive gear, if that gear let go, then only 4lo would work. check tcase fluid level and condition.
Yes, the 4lo felt normal. I haven't checked the fluid as of yet.
This weekend I think I'm going to drop the t-case and have a look. After the 6 bolts or so are removed, would the t-case slide back off the transmission, or would it drop rapidly and flatten my head? Anybody have any tips and/or tricks into doing this?
My bet is the hi drive gear took a crap. if so then its time for a new tcase
The tcase will have to slide back, off the output shaft of the trans. It may be stuck pretty good, from the gasket and the alignment dowel, so a prybar and hammer may be needed to start.
Drop driveshafts
pop linkage off lever (big flathead screwdriver works good for this)
disconnect 4x4 light plug
unbolt - It will sit up there all day long w/o the 6 bolts in.
Dont worry about using a jack, the Tcase only weighs about 50lbs. i lift it down by putting it on my chest and using my legs/shoulders.
Update on the fluid. Where ever the fluid is, it must be fine because the t-case was empty. From the looks of things, some one has previously had the t-case out and must of forgot to add fluid. There is no evidence of leakage under the truck. There was light brownish red sealant between the transmission and the transfer case, as well as the old gasket.
Once the t-case was out, I tried to split the case. I don't have snap ring pliers big enough to be able to get the case completely apart. I was able to see that there is a chunk of metal half wrapped around what I guess would be the input shaft (transmission out to the rear drive shaft) which is binding the chain. It looks like the chunk of metal is bolted in using 7mm bolts.
Well, i guess I'm in the market for a BW 1356 t-case. Are these t-cases known for problems, or are they pretty much bullet proof, with the exception of my issue? What I should I be looking to stay away from on a used one?
The 13-56 is a good strong case, its what ford put behind everything from 88-95, from the I6 to the diesels and 460s. Gotta keep fluid in em though, lol Topped off, they are supposed to have 2 qts Mercon ATF in them. Look for another one from a yard, and id highly doubt youll find one w/ anything mechanically wrong w/ it. Replace the seals of course, but other than that, they are pretty stout.