Originally Posted by lutzTD

I LOVE the 2.47. The only drawback is my speedo is off by 40%. also the wheels are large but the tire OD is actually smaller so that makes the 2.47 a little higher. I have a manual trans so an auto probably wouldnt notice the 1st gear takoff sluggishness I have. once I get to 5MPH first is like 2nd gear used to be and 4th is like an overdrive

I was watching my speedo closely with regard to RPM, this is what I have. At 45MPH (corrected to 63MPH) I turn 2200RPM. I think I have mis stated this in the past because I was guessing but this is the right numbers verified today. 4th has all the power I need to climb hills and will accellerate just fine. If I need to pass 3rd is the same as 4th used to be

I took the 2.47 from a 380 or 500 sel I cant remember.