The Dodge Challenger Message Board

The rear gears on my 70 Challenger sound like a baby rattle. I'm thinking of changing the ratio from 4.56 to 3.55 while I'm at it. Has anyone bought a new pumpkin lately, already set up and ready to install? Recommendations or warnings appreciated.

I bought one from Randy,s ring&pinion a little over a year ago,489 case 3.91 ratio.

Randy's Ring & Pinion, good co.