Original dodge number is 2954738 for 12"x3" drum, 4032450 for all others...Mark

 

Here is the one with 12x3, and here is the other...Mark

 

Thanks Mark, Truly appreciated.

I'm still lost, though

I looked up the numbers you provided, but they cross reference to a seal that's 3/8 larger than what fits in my hub.

(ACCORDING TO THE GUIDES ONLINE) My hub has a housing bore of 3.876", while the number that you gave me crossed over to a 4.249" housing bore size. I have to re-check these numbers later.

I think I may just order them from my vin #, although that may be a crap shoot as well, considering the rear axle was replaced back in the late 1990's or early 2000



When you install these, do they have an issue fitting on the axle hub ? When I put the drum on, it's really tight with the seal installed... almost too tight. I'm thinking that the seal isn't correct that I'm using, or that I'm not driving it in the hub deep enough. I was under the impression that the seal was to remain flush with the hub, but now I'm wondering if it's to actually sit deeper in the hub to where it stops in the hub and can't be driven in any further.

Thoughts ?


Thanks


T.

 

Sorry about your predicament, i feel your pain.

It's a tight fit you have to put your weight when you push the drum in.

I always drive the seals until they stop (i use an old bearing race to drive them in). When all is done the seal sits deeper into the hub lip by about 1/8 inch.

I find the drum too heavy/difficult to align to the spindle without help. I use a HF flat dolly with omni directional caster wheels, shim the drum so it's exactly the required level of the spindle, then just push it in.

 

I got the part number off the original dodge parts list. I believe that all of our drums are 12"x3, even if they had 2.5" shoes...Mark

 

Mark,

I found something interesting. here @ Rockauto's website.

When I ordered these seals, I didn't know which one's I had, so I ordered both

415009 and 417158 as seen in this catalog snapshot.

It appears that they had different size hub / shafts, either 2.875 or 2.75.

I've been using the "smaller seal, and it's possible it's too tight.

I still have the 417158's in my hand and I know that they fit in the hub as they're identical to the 415009's... with the different inside measurement.

If the 415009's are too tight, that would explain why they fail and the rubber fell out of the housing.

I guess I have to check this out this weekend..... If I can get the time to do so.

 

The one you need is timken 445086, you can see the crossover here on page 102. It is listed on rockauto at the very bottom of the list...Mark

 

The seal numbers I am familiar with for a Dana rear on a Dodge are Chicago Rawhide 28746 on a 3/4 ton and 30033 for a dually. Hope that helps.

 

try sliding the seal on the axle before you install it in the hub. should be able to slide it on and off with some small effort.

 

Good advise

 

Are you pre-loading the wheel bearings with the correct procedure and tightening the spindle nut to the proper torque?

How about the spindle's surface where the seal rides? Is it worn or smooth and clean?

 

Not this time, but last time I did so. Both numbers I had fit.

I followed the FSM tightening sequence when installed. The surface is clean on the spindle and there are no grooves.

I still think it's a correct seal issue, as with other things I've found on this truck, that what was installed previously wasn't necessarily correct. By matching them up, when I serviced them, I continued the legacy of installing the wrong parts.


T.

 

Mark,

Something is wrong here.

You tell me I need a seal that is 4.25" in outer diameter for my truck, and that's what chrysler shows it as.

My issue is that this seal that fits in the hub of my truck is ~ 3.88" max outer diameter, as listed with the numbers I've provided. Although I have a dana/ spicer 70, for sure, it appears that since this rear axle was changed in the past by the P.O. that this particular rear axle has a different rear hub in it with the smaller seal. Maybe they put a gasser rear axle in here ??????

I can't fit the seals you're referencing in the hub as they're much too large. When I tear it back apart, I'll post a few pix of the seals, hub, with measurements and a ruler to show you exactly what I have.

T.

 

Is this one the right dimensions? Maybe you can id what truck the axle came from, any numbers on it? Do you still have the old one that came out of it? I hate it when all I need is the right part and the job is done, but I cannot seem to find the right part...Mark

 

Mark,

That doesn't appear to be correct.

When I replaced the seal, I pulled the original one, went to the store, matched it up / through the applications guide, and threw it out. It had the same part number on it 415009 that I had in my hand. I thought I was golden. I was, although it was a golden shower, which made me gold.


I'm going to take this truck apart tomorrow afternoon.

I'm working in the morning, and I can't get to it until later. I've come to the conclusion that either I'm installing it wrong, or it's the wrong part and the other number, 417158 is the right one, based upon the interior size of the seal / size of the spindle.

Can you tell me if when you install your seals, do you send them all the way in, or do you stop seating them once they reach flush with the outside of the hub ? Maybe I'm just not pushing the seal deep enough into the hub for it to ride on the correct surface of the spindle.

Thanks for your diligence. Means a lot.