New U.S. Gear under drive for th400

New in the box US GEAR under drive for turbo 400. Part no. 80-80025 plus 170-28025 comprises the complete kit.
The UD ratio is 1.25.(trans ratio X rear ratio X1.25), Ex.(3.42X2.48=8.03),
(3.42 X 2.48 X 1.25=10.60)
2 BOXES
I got this for my 99 6.5L before I installed the DMax . Now I don't need it. It was about $2200.
I'd like to get $1500 but try an offer.
Obviously, I don't need it now.
Email me if you want pics or other info that I have. Call my cell if you want before 11PM EST 813-967-5789
Gordon Marks