Ok that means that a 2000 - 05 LeSabre is an H body too then right?

Right.

Jsut to cement this, they are H-Bodies

Ok, they are a H body but those who are saying it'* a G body are also correct just because the 2000+ H body was derived from the G body used by the Aurora and Riviera and some cadillacs ONLY. Most chassis components are identical between the two cars and it'* nearly impossible to tell the two apart if they had no body panels, interior, etc. as far as I know, the only difference is the chassis width, length, and structural rigidity.

thats alot of difference...