I got a new set of valve stem seals from Performance Products and I have a question.

The part number on the package is 05-004 (Perf Products) and the other number is 617-050-00-067 (I think this is the MB number). My Car is a 1981 300SD, so I believe I have the right part numbers.

In the package is what appears to be two different kind of seals, 5 of one and 5 of the other. I assume 5 intake and 5 exhaust. The one kind has a metal case with a black rubber inside and has a inside diameter consistent with the ones I took off of #1 cylinder. The other one has is a brown rubber on the inside and the outside but the inside diameter looks a lot smaller...??? The brown one is very soft and looks like it will go on to the stem.

So....

1. Do I have the right parts ???

2. If I have the right parts which one goes on which valve???

Thanks.

Phil

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1981 300SD 164K Miles