Is this for real?
 

I don't believe this, send a picture of that sucker sitting in the grass and I'll pat you on the back for seeing the light. Good luck...

There will be many pictures of the truck in the near future with the S/C and all. But I wonder how low it will feel just have that done to it? Any one have measurements of that set up? What size tire am I gonna want to run with that set up. I am keeping the 18's.
Help :)

im thinkin 285/55/18...
sidewall: 6.2''
radius: 15.2''
diameter: 30.3''
circumf: 95.3''
revs/mi: 665.0

Tuned, I'm not sure what this is about but I just measure my 285/55-20 at 30.75 tall.

285/55-20 should be closer to 32.75

my 285/50-20s measure 31 1/8" (31.125) and specs say 31.3

well over the past few years and the many times i had to research tires sizes and wheel combos, ive used tire calculaters and along with that ive found out that the data these "calculators" put out is an approximate set of numbers. i used this one here... http://www.miata.net/garage/tirecalcold.html and thats how i got my numbers. i put my tire size in the old tire set and 285/55/18 in the new tire set...

Thats cool, but with a 2.5 or so drop in the rear will it fit okay and look okay?

Yes they are approximate number, but 2" diff is pretty big. The approximates are because of rim width and other variables. If you want to figure out the numbers yourself without the online calculator:

first number is tire width in mm (285 for example)
Divide by 25.4 and you will have the tire width in inches (285/25.4= 11.22 inches)
The next number is aspect ration, give percentage of tire width that is the sidewall height (11.22*0.55=6.17)
To find the overall height of the tire (or diameter) take the sidewall height double it (6.17*2=12.34) then add it to the wheel diameter (12.34+18+30.34) (12.34+20=32.34).

This is how the online calculators work, they use the above to calculate it an approximate the specs.

oefootball_70 I think they will like fine with that drop.

Any pictures of a truck with just the rear shackles on?

Mine is 4x4 with just drop shackle (McGaughy 2" drop shackles). I haven't had time to take pics since I installed them on Saturday. I have been to busy with school and its dark now. I will try to get some tomorrow and post them up.