I am replacing the ring and pinion in the rear of my '04 and I would like to use the Ralliart set, but I am worried that upgrading the gear ratio in the rear without doing the front will cause problems......any input here?

The factory pinion has 4.11 stamped on it, and the ralliarts say they are 4.87...... this is where my concern lies!

 

Sorry, but it won't work without a matching gear change in the front.

 

the raliart 4.87 is for the tranny. no need to change diff ratios.

 

The rear axle ratio is 3.307 and is a bevel set. So, I am wondering what you have in hand.