The trans has been slipping for a bit on me so I decided to change the fluid. When I do, I was thinking of adding a deep pan and wanted to know if anyone has this pan and if its any good:
Derale Transmission Pan Coolers use the air flowing beneath the vehicle to reduce fluid temperatures from 20°F to 50°F. Features include heavy-gauge stamped steel construction, patented turbulator cooling tubes and a zinc plated finish. Increases fluid capacity. Replacement pan gasket included. Will not fit applications with OEM deep pans. Adds 2 QTs.
3.5" Depth, Tube Depth is at 2.38", Drain Plug Included.

'99 Tahoe Z71, on your basic 265/75/16's
MSD coil
MSD 6A ignition
Accel cap and rotor
taylor wire set
Volant CAI
Flowmaster 40 Series Si/So with
Edelbrock TES headers
Jet Performance hand held tune
All for a 5mpg gain currently @ 20mpg