i am putting a new clutch in my 02. i will have the tranny in my hand. it is pushing itself out of 1st and rev. when backing up or pulling forward, when i let of of the throttle something is pushing it out of gear. you can feel it in the shifter, like i was on the otherside pushing it out of gear. has anyone had experience with this?

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is it possible for a bad pilot bearing or input shaft bearing to cause this?

This is generally caused by something bent or worn out. It should fully lock itself into position. Is it only in 1st and/or reverse?

Look at the shift tower to make sure the plastic bushing on the trans side is not worn or missing.This happened on mine kept it from fully engaging into gear.Or the rear bearing in the main and/or rear case is bad.

As afar as experience of this yes I have on a old 2 1/2 ton military truck. Same problem in 5th gear. Let off the throttle and the stick would pop out of gear so the passenger would lean on the stick and hold it into gear... As for the fix there is something broke/wore out internally...

i believe when this start to happen its usually a worn out retainer in the tranny the lets the main shaft move around a bit.

Gonna have to open it up to see whats worn out.Could be several things. worn shift fork not getting it in gear far enough, or most likely a bad sliding collar happens when it grinds, it grinds enough of the cogs off as to where it does the said symptoms. first and reverse are always the gears that catch this the worst as people usually grind just a bit when first stepping the clutch down and tranny hasn't stopped rolling yet.

This is generally caused by something bent or worn out. It should fully lock itself into position. Is it only in 1st and/or reverse?

it has just recently started cpming out of 6th probably 6 times. my hanes manual says that something is loose in the clutch causing that. idont remember what. nothing is pushing on it like 1st and rev.

Sounds like its time for a refresh, new sliding collars synchros and bearings.

i appreciate all of yalls reply. ive never had any trouble with this tranny untill this sarted about 9 months ago. replaced the master cylinder about a year ago. gonna due the slave with the clutch. its accting up a little. no problem wit gears grinding and for the most part shifts good, even now. looks like we are just going to have to open it up and see whats in there. i have seen alot of replacemnt parts at alot of websites. i am afraid of cheap knock offs. do any of you know a reliable source for parts?

This is a very good company. http://quad4x4.com/

I've been through 3 of these tranny's, first thing to look at is the shift tower to make sure the plastic bushing is'nt worn out. http://www.allstategear.com/Shifter.htm Refer to the one for NV5600.This is the first to check before you pull the whole trans If thats good it's probly the big bearing in the rear of the main case,the only thing in the clutch/flywheel assy would be the pilot shaft bushing.

happens with my NV4500 too same cause, I haven't fixed it yet as it only happens when i hit 75 mph in cruise control right as i hit the bottom of a hill, and I havent needed to drive that fast in a long while.

you might check these guys out i talked with them when I had my tranny built and needed a tranny case they were very helpful. http://www.standardtransmission.com/installation-manuals-and-pictures.html#TOP

did you build your own or have them do it for you? i dont think its something i would have the time or the knowledge to do.

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I've been through 3 of these tranny's, first thing to look at is the shift tower to make sure the plastic bushing is'nt worn out.

http://www.allstategear.com/Shifter.htm Refer to the one for NV5600.This is the first to check before you pull the whole trans

If thats good it's probly the big bearing in the rear of the main case,the only thing in the clutch/flywheel assy would be the pilot shaft bushing.

the mechanic told the plastic bushing was good condition but ther were some metal shaving on the top of the tranny. do you have totake the whole thing a part to get to the bearing inthe rear of the main case? i saw a thread a while back where someone bought the plastic bushing seperately for a buck. i have only seen them with the shifter assembly

did you build your own or have them do it for you? i dont think its something i would have the time or the knowledge to do.

--- Update to the previous post...

the mechanic told the plastic bushing was good condition but ther were some metal shaving on the top of the tranny. do you have totake the whole thing a part to get to the bearing inthe rear of the main case? i saw a thread a while back where someone bought the plastic bushing seperately for a buck. i have only seen them with the shifter assembly

I had my nv4500 built as far as the plastic bushing the dealer should be able to sell you this part

I had my nv4500 built as far as the plastic bushing the dealer should be able to sell you this part

not a 5600, but my 4500.. I'm no stranger LOL

the dealer does not sell the bushing alone. the tranny is off but i wont be alble to see it until this afternoon.

not a 5600, but my 4500.. I'm no stranger LOL

Not even close to being the same animal as the 5600

Im well aware.