g741.org

Hi Guys,

Does anybody know a source and part numbers for new fresh transfer case seals? I see there are lots of NOS seals out there, but I doubt the old leather seals are still any good....so I'm looking for new equivalents. I only want to change these seals once.

thanks,
bob

Steel Soldiers published a list a while back of seals original stock numbers and their improved modern equivalents. I'll try looking for the copy I made. It might just be for the Braden Winches, but I think the transfer case seals were in there too.

John at Midwest Military has all the seals. Give him a call.

52 M-42

Bob,

I know that I will get blasted for this but "Just say no to NOS seals" You have better things to do than replace seals two or three times.

I know that you should double check the shafts for pitting and then base your seal quest on that basis. PM Charles @ M Series he will help with your questions and maybe which route to take on sealing up the T Case.

Blast away guys........

Bert

I'm with ya Bert.......I love NOS stuff...but not the high wear stuff. The "Old" in "NOS" means bad things for rubber, leather, and other time degraded things.

I know guys like Midwest and VPW should have new seals and such, but I'd also like to find a local source (NAPA, Walmart) for those seals in case I need one in a hurry. Ok.....I was just kidding about Walmart.....I was just seeing if you were paying attention. But you know what I mean.

thanks,
bob

Go here: http://www.dodgepowerwagon.com/glovebox/vaughn.txt
Interchange for all Dodge trucks.
Rick

One bit of advice.

Try to find the synthetic seal equivalent to the CR7440 seal, CR stands for Chicago Rawhide and they still produce leather seals.

Bert

National or timken part number 410308. I bought mine from rock auto.

Brett

This is the chart I use when I had to replace my seals on the Transfer case I found it very helpful.It not only lists the seal number but also there sizes and the redi-sleeve number. It was composed by a gentleman named Clint Dixon. I hope no one has any problems with me posting it.
http://www.t137.com/ClintDixon/Seals/Seals.htm

Sal

Awesome info guys....thank you all.

regards,
bob

The part numbers mentioned in the reference for this application are National seal (SKF) 410308 or CR seal 21213. which are correct however they utilize Nitrile rubber which loses it durability at 250 degrees which is probably very close to the operating temp. of a shaft in the transfer case if its driven much esp. in summer. Each brand also has a seal for this application which is made of polyacrylate which raises the operating temp for the seal to almost 400 degrees which would probably make for a more long lasting more effective seal, however price is double the cost of the cheaper Nitrile seal. The poly. seal numbers would be National 470308n and CR 21203, typical cost is about $15. nitrile and $32 for poly.

Wouldn't the higher temp seals help with the over heating issues the NP200 has?

National 470308n is $16.29 at Advance Auto Parts, assuming they can get them and don't want to add special order cost to them.

http://shop.advanceautoparts.com/webapp ... MgodnSYAfQ

Rockauto has them in the Timken brand for $ 15.74 each and there in stock.

Sal

Timken and National seal are the same exact part. Box says Timken, seal inside will be a National.

Installing a National #99212 redi-sleeve on the yoke will make for a much better, longer lasting seal job.

MSeriesRebuild wrote:Timken and National seal are the same exact part. Box says Timken, seal inside will be a National.

Installing a National #99212 redi-sleeve on the yoke will make for a much better, longer lasting seal job.

Charles,

Do you recommend using these on all shafts of the transfer case when resealing or just the shafts that are worn or otherwise buggered up?