I've read that the 300SD brakes are vented. The 300D's are not.

The change involves replacing the calibers, rotors, and maybe pads.

Would this upgrade give a significant increase in stopping time?

Any negatives?

__________________
JWJ
1983 MB 300D - > 430,000 miles - Deep Blue - Bilstein Comforts - 0-60 in 24 seconds - 27MPG
1985 MB 300TD (wagon) - > 275,000 miles - Manila Beige - Thule rack - 0-60 in 18 seconds - 22 - 25MPG
Biodiesel, Mobil Delvac 1, and Viton fuel lines!