Originally Posted by Brian.....Sisson
Fred,
It requires a socket to fit the nut. The front output and the rear are the same size nut (if memory serves) and the seal is the same. It takes about 2 hours to do the seals. The only hard one is the input.
The reason that your 200 is leaking, but your 98 isn't has alot to do with the cooling of the 98 versus the cooling of the 200. 200's tend to run hot and melt seals. You might want to flush the 200 a bit while you got it apart to get any rust out, and that is rumored to make it cool better.
If you have an impact wrench, then the seal replacement is a breeze. If not then a cheater bar helps as the nuts have to be torqued to 200 (I think).
Seal part nubmers:
National #450308 all 3 are the same.
Hope this helps....and is right.
-B.