post what size tires you have, what year your rig is, what is the lowest point on your vehicle, or any other mods that effect your minimum ground clearance. I'll start:

1991 4Runner
265x75 Toyo OC M/T
10.5" of Minimum ground clearance.
lowest point on my rig: rear diff.

 

Everyone's lowest point is going to be their rear diff, and it will be totally dependent on tire size (well except for 4Mogger who has Unimog portal axles).

Now, it might be interesting to find out people's NEXT lowest point...

33x10.50-15

Front diff 11.25"
Rear Diff 9.75"
Tcase 14.5"
(Tcase is lowest point other than diffs due to gas tank relocation)

 

1977 toyota hilux
yokohama 225/60
4 inches of minimum ground clearance.
lowest point is middle of front end.

 

1991 Pickup

33x12.50" BFGoodrich Mud-Terrains

Rear diff clearance - 10.6" to the drain plug. (at street pressure)

 

1988 4runner
36mickey thompson mtz
the lowest point is the t-case and it 11inches

 

W/ 33x10.50s on my '85, I get right at 10" under the rear axle and about 11" under the front (shaved) and 21" to the t-case and 23.5" to the frame:



Hopefully will get an extra inch or so under the rear once I put in the shaved housing I am building:
http://www.4crawler.com/4x4/ForSale/AxlePlate.shtml

 

1990 4Runner, SAS, 35" MTR's

Front:



Rear:

 

'99 Highlander

265/75

Just under 10" at the rear diff
13.25" T-case
11.33" at the front skidplate

 

Lowest point is about 18 inches at the diff. Still have a few inches clearance over the 5 gal. bucket.