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Engine/Transmission (1998.5 - 2002) NV5600 reverse problem

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2nd Gen Non-Engine/Transmission steering dampaner

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Worked on a '00 2500 NV5600 yesterday. Owner thought she had a clutch problem. The truck is in great shape and has only 44k miles. She thought it was difficult to get into low and reverse. Clutch friction point was perfect and it went into low normally for a 5600 but reverse grinds as the trany spins down. If I grab 4th first to slow things it goes in fine. Doesn't feel like the pilot is hanging up. I changed the fluid using the Mopar stuff since that's what was available. The magnet had the normal fuzz but also some small slivers of metal but not a lot. The oil had a lot of metallic color it in. I'm pretty sure this was its first change so this may be normal. The new oil didn't help at all and a test drive didn't reveal any noises. Sounds like a problem with the reverse synchron to me. Anyone else have anything like this happen? Oh, she says she hits reverse a little sometimes when going for 6th (hasn't had truck long) so maybe some of that metal is from that. I know my truck won't let me hit reverse at speed but hers will. Ideas?

I told her to go ahead and drive it and deal with it later if something gets worse since it probably wouldn't be cheap to fix. On the other hand reverse is in the tail housing so maybe it wouldn't be too bad to fix...
 
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Syncro's

Sounds like mine as syncros started going. Mine had lots of metal in the oil also. From when it started, mine shelled w/in 5000 miles.



Good luck,

Dave
 
well my 6 speed has 160k on it. about 90k miles ago I switched to redline MTL fluid way cheaper. my magnet and my pto cover filter (geno's) always has the same material that you have described more brass color. my transmission was really notchy hard in 1st and some and reverse I know that when my gears started to get notchy usually every 25k miles I changed my fluid. this seemed to help. I know on my truck if reverse doesnt go in I put it in 1st and then it goes in reverse easy. I cannot think of the company off the top of my head I have seen it many times on tdr but they rebuild and work on alot of 5600's at least I have heard this name. blumenthal's but Im sure you probley already know of this place. maybe see what they say. good luck let us know
 
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