Pinion seal part #?

[Jims50chrysler]

I am looking for the part # off the seal or a napa part # for a pinion seal for my 50 Chrysler rear end I would expect that they are the same for Dodge or plymouth the only thing that I could find on it was "standard"

my parts guy says he has a listing for a 1951, think they would be the same?

thanks in advanve for your help

Jim

[Normspeed]

Hi Jim, I looked in my Hollander book and although it's not always 100% right, it says all Chrysler 42-52 6 cyl, 7 & 8 passenger sedan limo and station wagon, and the 8 cyl except Imperial used the same interchange number for rear axle carrier assemblies. I guess they might have changed internals like the pinion seal along the way, but the 51 seal will probably do it.

[Jims50chrysler]

Thanks Norm

I will order one today and let everyone know what I get....it lists the same seal from 1932 to 1954 in the Kanter catalogue.

Jim

[Normspeed]

When I rebuilt my OD, the rear seal the supplier sent was different from what I removed, but it was correct in the two important areas, I.D. and O.D., so I used it. Turned out to be better than original because it allowed me to position the seal in the case so it rides on a fresh unworn area of the shaft.

[Jims50chrysler]

Well I got a pinion seal today.....it's not the right one even though the listing says it is for those years, I suspect they are for the limo and such as it is larger than the one that I need.

For refrence it is a Federal Mogul seal part #413469 and the dimensions are 2.125 X 3.350 X .375 when I do get the right one for my car I will post the part number in this thread.

BTW my seal dimensions are 1.875 X 3.125 X .375

Jim

[Normspeed]

Hope your parts guy will give you a credit on the return.

[Dodgeb4ya]

Exactly what year/model of car do you have? I`ll look it up in my seal books.

Bob

[Jims50chrysler]

Hi Bob

I have a 50 chrysler windsor club coupe with the fluid drive transmission.

Jim

[Dodgeb4ya]

The rear axle pinion seal for your car (model C48) is the same as for a Plymouth/dodge or DeSoto 6 cyl. car. Chrysler 8 cylinder cars are different as are long wheel base cars ie. 8 passenger sedans or limo`s and all station wagons.They use a bigger OD seal. The original Mopar part # for your C48 6 cyl. Windsor is a # 663602. The old National part# is 5851. The current replacement Chicago Rawhide (CR) # is a #18880. Replacement seals usually look a little different in width and appearence. The OD of the seal is usually about.005-.010" larger than the bore dia. for the press (sealing) fit.Good luck!

Bob

[Dodgeb4ya]

I forgot to tell you all this is assuming the rear end is the original factory installed axle!

Bob

[Jims50chrysler]

thanks Bob

I will throw these numbers out to my parts guy today...I am sure this will help a lot

Jim

[Merle Coggins]

When I recently swapped out the diff in my truck with one I got from Normspeed ('50 Plymouth?) I changed out the pinion seal for added security. The old seal had has a "CR" and "663602" stamped into it. I called my local Napa and gave them that number as a Chicago Rawhide number. They crossed it with no problem and I had a seal the next day. It was a thinner, newer style seal, but it fit perfectly. Unfortunetly I don't have the Napa number handy anymore. But if you give them the CR 663602 number, they'll be able to cross it for you.

Merle

[Jims50chrysler]

Yes Normspeed my part guy takes returns ...even if it's my fault (it has alot to do with how much money I give him every year )

Thank you all for you help on this topic the seal that I got (the right one) is a Federal-Mogul part #473240.

Jim

[JIPJOBXX]

Got a question??????????? I recently order a pinion seal and with you guys talking about this I just checked mine and I think they gave me the wrong size seal. The shaft size on the pinion gear shaft is 1 3/8" and I just noticed the inside dia of the seal is about 2 inches. This differently does not fit the shaft at all. Here is the parts number 18880 and manufactured by SKF of the present seal that I have with me now. Does anyone know the shaft size on the pinion gear shaft?? Just don't want to get myself into a can of worms without having the right parts to replace the old ones. Jon

[Dodgeb4ya]

The shaft size of the 6 cyl. rear axle drive shaft flange is 1.875". I just measured a 1949 plymouth rear driveline flange. The 18880 should be the correct one. As all the replacement seal books and online catalogs get updated there is the chance these #`s could be wrong! I just found out I have 4 of the 8 cyl. rear pinion seals- Mopar#619129 -no modern replacements available-so I`m lucky to have these, and no 6 cyl. smaller seals- so now I`m on the hunt too for a couple of these pinion seals too. My 1952 Belvedere rear pinion seal is leaking bad.

Bob

Bob

[Jims50chrysler]

Hi Bob

Are the dimensions of your 8 cylinder seals 2.125 X 3.350 X .375?

Jim

[Dodgeb4ya]

My Chrysler straight "8" rear axle pinion seals #619129 measure .... Bore-3.176" and shaft-1.750" , width is .562".

Bob