Need AAL recommendations

Have a 2003 4x4 extra cab-springs are sagging. has fiberglass bed cover-sure it adds at least 100#, bilstien shocks. Have seen many different aal heights 1.5 to 4" . Truck now rides like a CAR--Have seen many peeps go w/the 1.5 aal. Would the 3" be too stiff? Will be hauling loads occasionally, Basically is my daily driver. Seen the artical about the "U" bolt and will most likely do that also for wandering--roads are WINDY in the mountains. Do not off-road very much-only when getting fire wood.
Any recommendations will be helpful and APPRECIATED.
Previousely used a 91 4x4 w/32 x 10.5, 3" lift -NEVER got stuck ANYWHERE

 

hey! about 4 months ago, i added billy 5100s and the toytec 1.5" aal to my truck (2000 tacoma 4x4) and i love it. definitely stiffens up the rear a bit and gives the perfect amount of lift (in my opinion). i actually ended up getting ~2" lift, but with your bed cap, you'd probably be hitting a little less.

highly recommended!

fyi, i did have to do the carrier bearing drop and 2.5-degree rear axle shims to alleviate some driveline vibrations. even now they're not completely cured (still have some vibration from 40-50mph), but it's hardly noticeable and not bad enough to really worry about.

 

Thanks, see you are in the pacific NW-guess there are lots of trees and winding roads there too!! Wood gets pretty heavy- was thinking about the 3" .Dont want to stiffen up the ride too much- Cover will be removed for hauling--Load it up!