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Finally have to pull the trans.


Shran

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I use a little bit of wheel bearing grease or vaseline or engine oil... on the inside. Very light coat of RTV on the outside of the seal and I wipe out the seal channel with a rag and brake cleaner. I remove them with a screw like Robbie said although I have a slide hammer that I use with the screw, not totally necessary if you don't have one.

When installing it I try to get it started on one side and slowly push it over the crank, sometimes turning the seal a bit until the sealing lip is all the way over the crank. Then I will tap it in lightly with a rubber mallet and work around it until it's seated evenly, or use a piece of PVC/pipe/whatever fits.

Often I will order 2 or 3 rear main seals just in case I trash the first one - nothing worse than ruining a seal and having to wait additional day(s) for another one.
 


Rock Auto 5% Discount Code: 70D65189E6D8FF: January 5th, 2022

9723

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I use a little bit of wheel bearing grease or vaseline or engine oil... on the inside. Very light coat of RTV on the outside of the seal and I wipe out the seal channel with a rag and brake cleaner. I remove them with a screw like Robbie said although I have a slide hammer that I use with the screw, not totally necessary if you don't have one.

When installing it I try to get it started on one side and slowly push it over the crank, sometimes turning the seal a bit until the sealing lip is all the way over the crank. Then I will tap it in lightly with a rubber mallet and work around it until it's seated evenly, or use a piece of PVC/pipe/whatever fits.

Often I will order 2 or 3 rear main seals just in case I trash the first one - nothing worse than ruining a seal and having to wait additional day(s) for another one.
Sounds good, but two or three? They're $33 each at Napa...where are you getting them? What brand?

Thanks!
 

Shran

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Almost always RockAuto. I haven't checked prices on there. I would only buy one and be very careful if my only option was $33!!!
 

9723

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Almost always RockAuto. I haven't checked prices on there. I would only buy one and be very careful if my only option was $33!!!
I could probably get one at AZone, but I don't buy anything important from them. So it's either Napa, or I wait a week or 10 days for shipping. Ford has them for $13. The Napa one I purchased for my car, I think is very high quality (it doesn't even look like the others, brown and heavier duty), but that's one of the reasons I took it to a shop ($12). At $33, I was scared I'd ruin the thing.
 

9723

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Like this one that's only $18 at Rock Auto....probably harder to put in.
 

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I used the outer/base of a line head from a string trimmer to install rear main seals on my 5.0 Mustangs. Perfect size! Measure carefully!
 

9723

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Almost always RockAuto. I haven't checked prices on there. I would only buy one and be very careful if my only option was $33!!!
I could get the $33 one from Napa, order the $18 one from rock, then if i didnt need the second one, return that one to Napa. They're identical....haha, but I wouldn't do that.
 

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Eh....I'm getting them online and wait. I've got some chores to catch up on anyway.
 

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Is the engine oil up to the rear main seal? Do I have to remove oil so it won't leak?

Thanks
 

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Toonces drives a Ranger . . . . just not very well.
No, the oil level won't be up that far. Oil level has to be out of the turning crankshaft to prevent foaming, so it's well below the main seal.
 

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Yeah, that's what I thought. Thanks for the confirmation.
 

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But why not use bread! Get the bearing out, then feed a duck!

What size bolt are they using in the vid? My caliper would suggest 9/16 or 14mm. I can't get either without ordering online.

I suppose I'll have to try 1/2".
.
 
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What size bolt are they using in the vid? My caliper would suggest 9/16 or 14mm. I can't get either without ordering online.

I suppose I'll have to try 1/2".
.
I did the bread trick to remove my pilot bearing. I used a 3/8” socket extension if I remember correctly. Whatever it was, it worked like a dream.
 

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I always use a particular 9/16" socket that I have. The pilot bearing is mounted in the flywheel, so changing it when the flywheel is removed for resurfacing is easy. The OD of the bearing is 21mm or 53/64", so a little less than that works great.
 

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I always use a particular 9/16" socket that I have. The pilot bearing is mounted in the flywheel, so changing it when the flywheel is removed for resurfacing is easy. The OD of the bearing is 21mm or 53/64", so a little less than that works great.
That's great for applications with the bearing in the flywheel, but the OP's situation is different.
 


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