Ring and pinion or new tranny? Help!

[Mick65]

Hi all,

I've been considering getting a new ring and pinion put in my truck but it turns out I have a 4 series rear end. Theres currently 4.11 gearing in the rear end and I have a 4 speed saginaw transmission.

My question is would you guys suggest for me to drop the 800-1000 on a 3 series rear end in order to get it down to a 3.08 or so.

OR

Should I keep the 4.11 gearing and get a transmission with an overdrive... If so, what would be the easiest/least expensive way to go about this.

Thank you!