I know, there are pages and pages of discussion about these...which is part of the problem. Tons of discussion but without sitting down for a few hours of reading, I haven't seen my question addressed with just skimming.

I'm still happy with my decision to buy these, but for some reason I thought both the fronts and backs were adjustable. But only the fronts are.

Trucks and 4Runners alike have an issue with rear end sag. So what's the thinking behind a built-in method to raise the front, but not rear suspension? I figured I'd keep the front at stock height and just bring up the rear a tiny bit. Instead I'll just be keeping everything stock.

Either way these will be a good upgrade to the truck, but I'm a little dissapointed that the rears aren't adjustable...

 

The perch incorporated on a coil over is what enables that adjustability -adjustable perch = adjustable height. No perch, no adjustability.

The 5100s are great. I run Tundra 5100s on my 4R. With the saggy ass in back, I use OME 891s with OE Dodge 2500 front shocks. Of course - go figure - those OME 891s are slowly sagging. Guess it's a Toyota thing. Gives 'em charm.

STICK

 

They ride stiff. I smoke rear shocks every couple of years, the heat just kills them.

 

Gotcha. I just didn't realize there were so many people interested in raising the front. I like the rear a little higher. But I guess there are compatible with small lifts, so that's part of their popularity.

I just had a shop swap the front coils from the old ones to new ones, so we'll see how it rides one I get the fronts back on & can drive it.

 

If you like the back to ride high and don't haul much, the FJ80 front spring swap raises the rear of the 4Runner more than the 890/891 option.

STICK

 

You can also use OME lift spring for the FJ80. Using springs is a cheap and effective to lift the rear although will sag under load.

 

with the front at stock height, the rake would be too much if he will use the LC80 springs. I would recommend that the OP install new the 1999-2000 SR5 Highlander Edition rear springs as those will provide a 1-inch lift over the stock height.