i measured and 4.5" was still higher than the exhuast pipe so i ordered the ORU pan. 336.00

looks like a really nice one and holds 4.5 quarts more than the stock.

Mag-Hytec's heavy duty Transmission pans provide increased lubricant and cooling capacity for hard working recreational and service vehicles. Mag-Hytec Pans set your vehicle apart in both aesthetics and function - cast in A356-T6 aluminum and texture powder coated black with machined cooling fins. Magnetic drain plugs trap worn gear material promoting fluid integrity. Each unit is fitted with ARP 568 O-rings for superior sealing. All hardware is 303 stainless steel, in most applications no gasket or sealant is required, and all Mag-Hytec parts are covered by a lifetime limited warranty.
Fits the following vehicles
GM 1992-2007 1500/2500/3500 Trucks, Suburbans 6.0 Liter HD Trucks
Overall height is 4 1/2"
Holds 4.5 quarts more fluid than stock pan
Transmission Pans for a GM 4L80E