new rear transmision seal

[DutchEdwin]

Before I want to paint my transmission I have to solve a leak in the REAR TRANSMISSION SEAL, in the pic at arrow 1.

When I looked it up at Andy Bernbaum (not a guy I want to buy from) he lists the seal I need (standard transmission plymouth 1955) as an item used in standard transmissions from 1946 to 1956. See here: http://www.oldmoparts.com/t.htm

Can anyone tell me where I can find a new modern one (the NOS old leather seal will probably leak as well.

Other transmission question:

In the pic pointed at 2, there is a hole in the casting where it faces the bell housing. Oil from the transmission can get out here. Is this right? or does it need a plug.

Edwin.

[DutchEdwin]

Does nobody know where to get a new rear transmission seal?

Not NOS leather seal but a modern rubber oil seal?

Could it be Napa has them?

[Jim Saraceno]

I just bought a rear tranny seal for my '35 from Bernbaum. It's not leather and it appears to be in good, new condition. The rubber is very pliable, no sign of deterioration.

[Normspeed]

I'll bet NAPA has them. Also, that place in Texas, that rebuilds vacuum advances, Terrill Machine. They have a good reputation. And on Blueskies' website, he has links to one or more transmission parts suppliers.

About that hole in the front of the tranny, if you make a gasket for that area you won't have leaks. The hole is the size of an American dime coin, you could put one in there with some sealant.

[blueskies]

Before I want to paint my transmission I have to solve a leak in the REAR TRANSMISSION SEAL, in the pic at arrow 1.

When I looked it up at Andy Bernbaum (not a guy I want to buy from) he lists the seal I need (standard transmission plymouth 1955) as an item used in standard transmissions from 1946 to 1956. See here: http://www.oldmoparts.com/t.htm

Can anyone tell me where I can find a new modern one (the NOS old leather seal will probably leak as well.

Other transmission question:

In the pic pointed at 2, there is a hole in the casting where it faces the bell housing. Oil from the transmission can get out here. Is this right? or does it need a plug.

Edwin.

Edwin-

I think the rear seal is a standard seal that can be cross-referenced at your local auto parts store. The seal surface is the drum, which needs to be pulled in order to replace the seal. Check the sealing surface on the drum, it may have a groove worn into it from years of grit on the old seal.

The hole in the face of the tranny case will leak oil, but doesn't get a plug. There is a paper gasket that goes between the tranny and the bell housing that will seal this area.

Pete

[DutchEdwin]

I have a half gone paper seal between the tranny and bell housing.

I'm gonna cut a new one form gasket paper myself. If this should seal the hole, I'm covered for the leak. Doesn't explain why the hole is there?

[Mechanik]

I believe the correct seal is:

National #8160S – Oreilly Auto $6.00

[DutchEdwin]

Or Advance Auto

8160S says it fits Dodge 46-48 Custom and Deluxe among others.

Also gives specs.

I don't work there either and make no claim that it is correct.

http://www.partsamerica.com/productdetail.aspx?MfrCode=BCA&MfrPartNumber=8160S

Shel,

Good site, I did find the golden button, See all vehicles this product fits ....Gess what, more then 100 types, included my car... and for dodge going up to 1993. In my village there is an American car parts store. They usualy have parts form early '70 up. They probably have it.

And also thanx for the advise on the seal. I'll put a hole in the gasket. Still wonder why they didn't put a cover over it so it is closed. I gess there can get dirt into the gearbox from the bell housing. So still thinking if I should cover it, but then from the inside of the bell housing, if there is any space overthere......

[DutchEdwin]

Now I know my local shop has the seal. But....... now all I have to do is get to the seal.

The tranny is on the bench. I have the hand brake applied again and tight so the brake drum does not move. I try to get the nut loose but if will NOT move. I do not want to use heat (I only have a butane burner, not propane).

Any ideas

[Normspeed]

Use an impact wrench if you have one. It should come loose with that.

[DutchEdwin]

Use an impact wrench if you have one. It should come loose with that.

uhhhhhh, I don't have one. Already tried 3 foot pipe, pretensioned, hammered with a 2 pound hammer....no luck sofar .

Thanks for the suggestion.

[Normspeed]

It might be worth transporting the tranny to a nearby shop that has an impact wrench. If memory serves, the nut might even have an exact match in metric size.

[DutchEdwin]

I do have a prof-tool set in US-tools, the one with the most articles inside, I needed to use all tools inside already You must have it when doing a car like this. And your right, some times a metric tool fits better then a ASTM-tool,

European perfection :D

My tool fits the nut. so that's not the problem But if the shop has it in impact tool size????

BUT, As I was writing this mail I just went to my garage to check what size I was using on the nut, (a 32mm wrench on a 31 mm nut, do not now the 1 X/X in inches). It sat for two days in WD40. Just an other try to get it loose and it moved. I love it when a plan comes together. :D

Thanks Norm.