Disassembly nv4500

[SAndreasen]

Finally got around to tearing this thing apart . Magnets and filter sure helped keep the metal out of everything a couple papers towels and the case Is clean . Going to go ahead and order a new main shaft fifth gear has to much backlash for my liking .

 

[Matt42]

How many miles has this poor beast seen?

 

[JeepBuilder]

That is not good. I worry about towing a camper and 950 lb trailer and using 5th gear while traveling. I had rebuilt the NV4500 a couple years ago with a new main shaft and fifth gear. The gear while being fully splined was a bit looser on the mainshaft that I think it should have been. No doubt import parts. I hope I am not creating what you have there. Can you describe the use you put it through? And the symptoms causing removal? I am curious. And good luck on your rebuild. It sure looks like it was time.

 

[bcbender]

Those are some really large and shiny wooly worms in the bottom of that case...

 

[BigPapa]

What were you using for lube and when was it last changed?

 

[SAndreasen]

What were you using for lube and when was it last changed?

been ruining ams oil because I can get it local . This doesn’t have 20,000 miles on the oil probably closer to 10 . That bearing has been going out for awhile

 

[SAndreasen]

How many miles has this poor beast seen?

330 340000 .

 

[SAndreasen]

That is not good. I worry about towing a camper and 950 lb trailer and using 5th gear while traveling. I had rebuilt the NV4500 a couple years ago with a new main shaft and fifth gear. The gear while being fully splined was a bit looser on the mainshaft that I think it should have been. No doubt import parts. I hope I am not creating what you have there. Can you describe the use you put it through? And the symptoms causing removal? I am curious. And good luck on your rebuild. It sure looks like it was time.

I work them like a rented mule I normally gross between 30 and 35000 as high as 370000 . You’ll be fine that’s how the gears fit on the new fully splined main shaft the only fool proof way to hold the fifth gear in place is green loctite and the super but I posted about I also have a fifth gear retainer but you have to be careful because it can hit the transfer case housing . I have been limping this transmission along for about 2 years now it’s been a little noisy finally the bearing let go on the front of the counter shaft and that’s when it doesn’t move anymore except in 4th gear

 

[JeepBuilder]

Excellent thank you.

 

[SAndreasen]

Those are some really large and shiny wooly worms in the bottom of that case...

The magnets sure did a nice job of keeping everything in the bottom of the case