I have found a nice, low mileage 2000 SD CC 4x4 with V10 that I am interested in buying. I have already decoded the VIN and run Carfax on it. But I cannot determine the rear axle ratio. On the VIN plate on the driver's door post, under "Axle", it is blank. Just to the left of the word "Axle" is an "R" and under that, the letter "K". Is that for the rear axle? I have not seen one like this, was expecting a 2-digit code under "Axle" but have not checked one of these in quite a while. Is the "K" anything? How do I find out what axle ratio this thing has and if it is L/S or not without jacking it up and counting the revolutions? Any help appreciated!

 

OK, I crawled up under the truck and checked the tag on the axle. Here is what I found. On one row, it says "S 141 H" and on the second row, it says "L73 10 5 0D15". There may be another letter before the "L" on the second row but it is up under the bolt and I cannot tell what it is. Hope this helps.

 

There probably is another letter under the bolt- a "3". From the axle tag description, it sounds like a 3.73 gear with limited slip.

 

You must be right, just be sure I jacked it up last night and sure enough, 3.73 with LS.