Any IBBers rebuilt a NV-3500 ? Can’t find new needle bearings

roundhouse

roundhouse

Red Skull
Joined
Aug 7, 2020
Messages
44
In anyone knows where I can get the plastic needle bearings a NV3500 please chime in .




Gonna take a stab at rebuilding a NV-3500

It had a zillion miles on it , the last 40k behind a LS 5.3 with 3.73 gears and 35s

And the run last Saturday of 1600 miles at 80 mph finished off first gear and second gear , fifth and reverse still works but sounds like a box of gravel

Made it back home though .

Think it’s from a late 90s or 2001 ish Silverado , I’m not sure .
 
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I've rebuilt my dodge nv3500. You need to find an alignment stand or build your own. It holds the shafts and gears in a specific spot to set the case back on.
 
What is the common failure in these transmission?
 
My issue was the pilot bearing siezed amd grooved the input shaft. I found it when doing a clutch. So I tore it down and replaced it. And inspected it since it was apart.
 
Mine is noisy with the transmission in neutral and your foot off the clutch. Quiets down when you engage the clutch.
 
cj3a said:
Mine is noisy with the transmission in neutral and your foot off the clutch. Quiets down when you engage the clutch.
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Input shaft bearing, might have the same issue Domer mentioned with the tip of the input shaft that rides in the pilot bearing might be worn which lead to the bearing on the transmission end failing.
 
I found the shop manual for rebuilding a dodge version , I assume it’s the same as the GM version .

Anybody have a file for 3D printing the stand ?

Or a diagram for welding up a metal one ?
 
cj3a said:
Mine is noisy with the transmission in neutral and your foot off the clutch. Quiets down when you engage the clutch.
Click to expand...
Im currently having that issue. Just not motivated to pull the trans..
 
Domer said:
I've rebuilt my dodge nv3500. You need to find an alignment stand or build your own. It holds the shafts and gears in a specific spot to set the case back on.
Click to expand...
IMG_7903.jpeg
This is the one that seems easiest for me to make .

I got a wooden workbench and a drawer full of old hole saws
 
Found my old pictures.
Here is the stand. I found mine on ebay for $100 shipped.
KIMG5085.jpg
KIMG4885.jpg


Roughly what the gears look like when you split the cases.
KIMG4856.jpg
KIMG4854.jpg


What was left of my clutch..
KIMG4843.jpg


And my pilot bearing.. good thing dodge made a replaceable sleeve also on these..mine was trashed.. input shaft was grooved badly. They do make a repair sleeve for the input also.
KIMG4845.jpg
 
Domer said:
Found my old pictures.
Here is the stand. I found mine on ebay for $100 shipped.
KIMG5085.jpg
KIMG4885.jpg


Roughly what the gears look like when you split the cases.
KIMG4856.jpg
KIMG4854.jpg


What was left of my clutch..
KIMG4843.jpg


And my pilot bearing.. good thing dodge made a replaceable sleeve also on these..mine was trashed.. input shaft was grooved badly. They do make a repair sleeve for the input also.
KIMG4845.jpg
Click to expand...
My input shaft was trashed in the bearing area

Bought a new input shaft .


And I bought a rebuilt kit , but it has three syncro rings and the trans has five syncro rings


And the kit didn’t come with the needle bearings , and that’s what’s bad in my trans , the plastic cage the needles ride in melted

Along with the center roller bearing on the main shaft breaking apart

And didn’t come with the new rubber ring that’s on the main shaft .


Where did you get your parts ?

I’m struggling to find all the parts .
 
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roundhouse said:
My input shaft was trashed in the bearing area

Bought a new input shaft .


And I bought a rebuilt kit , but it has three syncro rings and the trans has five syncro rings


And the kit didn’t come with the needle bearings , and that’s what’s bad in my trans , the plastic cage the needles ride in melted

Along with the center roller bearing on the main shaft breaking apart

And didn’t come with the new rubber ring that’s on the main shaft .


Where did you get your parts ?

I’m struggling to find all the parts .
Click to expand...
All state gear is where I get alot from.
Look under chevy transmission, nv3500 and it shows dodge parts

Allstate Gear, Inc. – Manual Transmission Repair Parts Online

The nation's fastest-growing supplier of rebuild kits, transfer case parts, and a variety of replacement parts for stick shift powered vehicles. Shop public wholesale pricing, online.
www.allstategear.com
 
Domer said:
All state gear is where I get alot from.
Look under chevy transmission, nv3500 and it shows dodge parts

Allstate Gear, Inc. – Manual Transmission Repair Parts Online

The nation's fastest-growing supplier of rebuild kits, transfer case parts, and a variety of replacement parts for stick shift powered vehicles. Shop public wholesale pricing, online.
www.allstategear.com
Click to expand...
Good info

Apparently we have a AX-15 and not anNV-3500?

These needle bearings are only listed on the AX-15 parts

IMG_8130.jpeg
IMG_8129.png
 
Interesting. Mine is an Nv3500. But if you can cross reference the number then good to go.
 
Domer said:
Interesting. Mine is an Nv3500. But if you can cross reference the number then good to go.
Click to expand...
I can’t cross the numbers

And im pretty sure mine is a 3500

Bolted right up to the 350 and later to the 5.3

But mine has those needle bearings in plastic cages and apparently no one sells them ?

It’s the plastic that melted and caused me to need to
Rebuilt it
IMG_8134.jpeg
IMG_8132.jpeg
IMG_8133.jpeg
 
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BTT
If anyone knows where I can get the plastic needle bearings , lemme know .

Lost of places list them on the website but don’t actually have them .
 
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