Originally Posted by The DEUCE
The gearing doesn't matter as long as it comes from or made for a Chrysler 9.25" Rear End. Hopefully by the end of the year I will have a DTT and 4.56's installed.
Don't Fear the Gear.
That's exactly what I'm about to get installed. I got the Motive 4.56 gear set, install kit, and DTT from Moe's. The install kit didn't come with ring gear bolts, however. I bought new bolts at the dealership. I don't think it is a good idea to re-use ring gear bolts. I am also going to install Lakewood traction bars. By the way, I have heard that on the '06 and newer 9.25" the 4.56 ring gear has case clearance problems that guys are fixing with a little grinding.
If you want to find out what gears you have from the factory there usually is a sticker on the inside of the glove box door that tells gear ratio and if it is limited slip.