I had purchased some Balo rear rotors for my 91 300D and my 92 300D (from that place in Arizona). The rotors that I bought have six holes: five for the bolts and one for a set screw. But on the hub there's also a "dowel" (on the parts supplier site I see it's called a locator pin) that sticks out, requiring yet another hole in rotor. So unless I drill holes or eliminate the dowel, these rotors won't work on the 91.

I contacted customer service. I was told that Mercedes eventually decided that that dowel was unnecessary and started manufacturing hubs without them; and that, furthermore, it is perfectly fine to remove that dowel.

Anyone know anything about this transition? Specifically, does anyone know when the transition was made? I'm wondering what I'll find on my 92.

Thanks.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife