1976 Trillium 1300 wheel bearing seal size - Fiberglass RV


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Old 08-09-2013, 10:35 PM   #1
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Name: Walter
Trailer: 1976 Trillium 1300; Invertec Falcon 190 class b rv
Washington
Posts: 75
1976 Trillium 1300 wheel bearing seal size

I would like to repack the original wheel bearings of my 1976 Trillium 1300 and will need a new rear grease seal. Would anyone know the part no for the seal or specs (ID, OD, width) ?

A search of this site did come up with one hit and reference to a seal with Napa part no 17404, but looking at the specs for the seal, I don't think it would be the right one for this original spindle, as the ID was 1.75" and OD 2.565" which sound too large. I would expect the ID to be more like 1-1.25".

It would really help to have the right seals in hand before doing the job, because I hate running off in the middle of a job to find a part or tool when I'm all dirty and greasy.

My trailer should be due for a repacking as it was last done in 1998, although not a lot of miles since then according to the previous owner.

There have been a number of threads about the pros and cons of doing it yourself. I saw a wheel bearing being replaced on a 30+ ft Class A in a campground 2 wks ago by a road service and watched the tech carefully how he packed an inner bearing. He didn't pack it like what is recommended in the wheel repacking videos with a packing tool or in his greased packed palm and basicly rubbed grease on both sides of the bearing. Admittedly, in this class A, the major wheel lubrication was coming from the differential fluid line.

That told me I wasn't going to pay him to repack my bearings for $150 plus seal costs. I have repacked bicycle bearings so this kind of job isn't totally foreign.

Thank you.
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Old 08-09-2013, 11:06 PM   #2
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Name: Randy
Trailer: 1980Trillium 1300
Ontario
Posts: 355
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Originally Posted by georgewa View Post
I would like to repack the original wheel bearings of my 1976 Trillium 1300 and will need a new rear grease seal. Would anyone know the part no for the seal or specs (ID, OD, width) ?

A search of this site did come up with one hit and reference to a seal with Napa part no 17404, but looking at the specs for the seal, I don't think it would be the right one for this original spindle, as the ID was 1.75" and OD 2.565" which sound too large. I would expect the ID to be more like 1-1.25".

It would really help to have the right seals in hand before doing the job, because I hate running off in the middle of a job to find a part or tool when I'm all dirty and greasy.

My trailer should be due for a repacking as it was last done in 1998, although not a lot of miles since then according to the previous owner.

There have been a number of threads about the pros and cons of doing it yourself. I saw a wheel bearing being replaced on a 30+ ft Class A in a campground 2 wks ago by a road service and watched the tech carefully how he packed an inner bearing. He didn't pack it like what is recommended in the wheel repacking videos with a packing tool or in his greased packed palm and basicly rubbed grease on both sides of the bearing. Admittedly, in this class A, the major wheel lubrication was coming from the differential fluid line.

That told me I wasn't going to pay him to repack my bearings for $150 plus seal costs. I have repacked bicycle bearings so this kind of job isn't totally foreign.

Thank you.
...Life has too many things to memorize, Buddy. Do not bother memorizing something that use only once in a few years. My advice is..take off your old bearings, bring it to a local supply shop, they will know what part you need. If not, they would be out the door for the next few days. Not your job, you have your own job...including taking care of all your necessities. That is what I did for my project-from head to toe-of my Trillium 1300. Enclosed is my ebrake diy project. Just go for it , take it easy and be confident-ask a friend it wouldn't hurt-My total project diy of Trillium 1300 took me...ab 3 months, including exterior paint job. Share with you...
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Old 08-10-2013, 12:44 PM   #3
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Name: Drew
Trailer: Trillium Outback - 2004
Alberta
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I repacked mine earlier this year. I tried to find out before as well but ended up pulling the hub and then looked up the number stamped on the old seal. While you can guess at it they aren't all the same and you won't really know for sure until you have the old one to compare.
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