Hi,

I agree with David's assessment of your rust situation, but will take it one step further. You probably don't even need to buy the rockers. One of the points that David made is very instrumental in the completion of this repair. The rockers are located down low and are covered with the undercoating. Cosmetic detail here is minimal. (I am hoping here that the rust does not extend to the Inner rockers or structure of the round jack point) Basically, the repair goes like this: Cut away every bit of bad metal, preferably in a rectangular shape, so that the new metal is easy to fit, cut the new metal to fit, drill a hole where the jack point comes through, paint inside of rockers with some sort of rustproofing paint, weld new metal to old and weld all the way around the jackpoint, prime new section and undercoat. Good as new. I did this exact exercise on a BMW 633Csi about 10-12 years ago and the car is still being driven with no rust around the jack points. I recently did it on a 300D and a 190D. I have no doubt that these repairs will last a long time, too.

Good luck,
Tom

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1993 300TE
1984 300D
1984 300SD
1976 BMW R90S