Axle ratios

[bfiakas]

My 88 Bronco has 3.45 rear end and I have a 3.73 out of a 84 I want to install,and there's no front Dana 28 axle code label.My ? is, are the front and rear axle ratios the same?(logic tells me they are)So when I change out the rear end do I also have to match the ratio for the front axle.

 

[swamprat]

both need to match

 

[BlackBII]

If you ever plan on putting it in 4 wheel drive, yes, the Front and Rear ratio's need to match.

 

[pillen140]

yes!

 

[bfiakas]

Thanks, I kept the 3.73 Dana diff.just for that reason.