need help! dealer keeps ordering a wrong snap ring for Viscous coupler (1 Viewer)

[-Spike-]

Update to an old thread. I ran into this same issue with VC snap ring part not being correct. I bought all 12 listed in the parts diagram. Don't bother buying it. It's unobtainium at this point.

I have one you can have.

 

[spyduh]

I have one you can have.

I'm good. I found a random c clip off a mini truck that fit perfect. Zero play. Thank you tho.

They are actually a fitted snap ring according to the FSM that you need to size up for minimal play. The FSM shows 5 sizes.

 

[spyduh]

I have one you can have.

Spike,
Can you measure the inner diameter of the snap ring and provide the measurements in this thread. I think CDan is trying to figure out this mystery part number.

 

[cruiserdan]

When I look closely on my old snap ring it has a faint A or H marking. It pretty much looks like 11 and is 2mm thick.

hey Dan, just took some measurements, the 39022 is 39mm and my original is 34mm. but i just took care of my issue, i went to a local transmission repair shop and the guy found me a new snap ring which is only slightly larger but still fits in the groove on the shaft, the overall diameter is the same. thanks for everybody's time.

A possible answer for posterity. I discovered a snap ring in an Australian catalog that lists a 90520-33020 for a "full time" transfer case. It is described as 2mm in thickness and the part number suggests an inside diameter of 33mm. This may be it. I suppose a used one could measure 34mm. This part number is not live in the US market and I have not been able to Google-fu any photographs of one.

 

[spyduh]

A possible answer for posterity. I discovered a snap ring in an Australian catalog that lists a 90520-33020 for a "full time" transfer case. It is described as 2mm in thickness and the part number suggests an inside diameter of 33mm. This may be it. I suppose a used one could measure 34mm. This part number is not live in the US market and I have not been able to Google-fu any photographs of one.

Thanks Dan.

Hopefully that part number listed will help someone else in the future. Curious if that's the right one.

 

[inkpot]

Now that you have a solution it will probably freeze up. There is no way to service the VC. We toss them in the recycle bin whenever we are in the transfer case.

 

[gummycarbs]

A possible answer for posterity. I discovered a snap ring in an Australian catalog that lists a 90520-33020 for a "full time" transfer case. It is described as 2mm in thickness and the part number suggests an inside diameter of 33mm. This may be it. I suppose a used one could measure 34mm. This part number is not live in the US market and I have not been able to Google-fu any photographs of one.

I added one of these (90520-33020) to a recent order. Here it is compared to an old TCase VC snap ring that's been expanded at least four times in its life:

In the above photo, new is on the left, old on the right.

New on the bottom, old on top.

 

[cahill]

Thanks for posting the photos. Looks like it is the correct part or at least incredibly close and would work.

 

[gummycarbs]

Thanks for posting the photos. Looks like it is the correct part or at least incredibly close and would work.

I would say it's as perfect a match as you could find within manufacturing tolerances.

Measurements, taken at various spots around the circumference:

Thickness: old 2.0mm, new 2.01 - 2.03mm

Width: old 3.44 - 3.5mm, new 3.44 - 3.5mm

 

[cahill]

@cruiserdan for another win. Good find.