shifting problems F450
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Junior User
Joined: Jan 2004
Posts: 99
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From: ohio
shifting problems F450
i have a 1991 ford F 450 460 gas 2 wheel drive with a 5 speed (4 speed with 5th overdrive). the problem i have, i cant get shift into rev or 2 gear when the truck is at a dead stop. if the truck is coasting slowly i can shift. it acts like the clutch isn't releasing or not stoping. the clutch is in good working order not slipping, it will chatter some but not all the time. i tow a big traler and construction equipment all the time. any one have an idea, or this same problem??? i was thinking that the pilot bearing could be bad, frozen and won't let the input shaft stop turning??? i dont know if this truck has a bearing or a brass bushing??? any help would be or ideas???
THANKS oldmanbergie
THANKS oldmanbergie
Elder User
Joined: Sep 2003
Posts: 641
Likes: 1
From: Louisiana
The pilot bearing is just a support for the end of the input shaft. It sounds like you might have a little wear or alignment problem with those particular syncro gears. As big as that truck is, it should be a ZF tranny, correct? When you come to a stop, put in neutral and let out the clutch. Push back in and try shifting, see if that helps. Also, I read alot about changing the type of fluid you run it helps alot.
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Junior User
Joined: Jan 2004
Posts: 99
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From: ohio
if i let the transmission in nutural and come to a complete stop i can't get the shifter to go into 2nd or 1st(crepper gear). if i shift before stoping dead i can drop right into gear. the reason i was thinking about the pilot bearing is if it was frozen/tight when the clutch is depressed the disc(clutch) should stop turning. with the disc splined to the input shaft if the pilot bearing was not working or frozen the shaft can,t stop? if the disc doesn't stop turning the gears are still turning???
Elder User
Joined: Sep 2003
Posts: 641
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From: Louisiana
If the pilot bearing is frozen, it would probably chew up the end of the input shaft or seize to it and spin in the engine bore side. If it is preventing the input shaft from turning freely with the clutch depressed, you would have a meshing problem.
Senior User
Joined: Jun 2003
Posts: 435
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From: San Jose, CA
i may have a similiar problem developing, same tranny in a 1990 f-250 with the 351w. rolling a little it falls right in to 2nd but at a dead stop it takes some muscle to clunk it into gear. ive read on this forum using something besides ATF in the manual tranny is a good idea. someone please elaborate!
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Junior User
Joined: Jan 2004
Posts: 99
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From: ohio
i have looked at a lot of the threads and can't find any thing out, eather on the changing the oil, or simular problems with this transmossion. i am sure more than two of us are having this problem. we need help!!
THANKS IN ADVANCE oldmanbergie
THANKS IN ADVANCE oldmanbergie
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