Kevin Bird keeps records of all Quaifes he installs and has record of installing one in the earlier CLK55 with a 3.06 rear end, so they do exist and the quaife is avalable. Kevin mentioned to me that you can't go from the Quaife site to verify applications becuase it is the Quaife distributors that commission units. bottom line is the CLK55/E55 rear will bolt in with the clk55 axles. the 3.06 did exist and the quaife unit is avaialble for it. What is not known is if the CLK55 rear is acutally stronger that the one we have. We have discovered that the Crossfire rear end was also used in the C43.

I think this is a good discussion to have so that we can learn more about our cars and the options we have to improve them. As continue to push the limits of HP and torque we will start breaking things and beefier options will be nice to have. I am getting ready to boost my V8 and I am very worried about the rear end. until we can change ratios, I am stuck with 3.27. that 3.47 that Kevin mentioned would be nice to find if we figure out how to change ratios.