NV3550 problem

Jul 15, 2003 6 Replies
W

Hi All, has anyone heard of a synch. problem with the NV3550? I thought I was having issues with the throwout bearing making noise, but after replacing it the same noise occurs. It usually happens while the clutch is depressed and I am switching for first to second or second to third gear. I figured it was the throwout bearing making the noise, but a mechanic has told me it is the synchros making the noise. This is the Advanced adapters conversion that replaced the BA-10 in an 89 YJ. The built date on the Transmission is 09-2002. Anyone have any noise from their NV3550?



Thanks a bunch for any and all replies!



Don


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R

If it sounds like someone dumped a bunch of marbles in your tranny, then yes, it seems to be rather normal. Does it make a similar noise which in neutral with the clutch pedal off the floor?

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M

The noise is standard from the factory as well. Be sure you are using the correct fluid, though, the 3550 doesn't take regular 80w90 gear oil.

  • * * Matt Macchiarolo
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U

I'd be surprised to hear of one that doesn't!

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M

Fluid is only available from the dealer, something like $18/quart at a Chrysler dealer. It's cheaper at a GM dealer, ask for the Syncromesh manual transmission fluid for the 3/4-1-ton manual tranny.

  • * * Matt Macchiarolo
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M

YAY! An aftermarket replacement!!! My quest is over! How much did you pay, may I ask?

  • * * Matt Macchiarolo
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J

Matt:

It wasn't muich more than regular gear oil, but I've lost the receipt. It was right on the shelf with the regular stuff. Here's the link:

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Course, I was late for work this morning because my GD NV3500 transmission failed me! I have a problem with the shift mechanism that was previously fixed but now has returned. It's like shifting through jello. That'll teach me to open my big mouth!

John

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