6245- 1999-2004 F-250 SUPER DUTY PICKUP 4WD 4 Door ; Extended Cab Pickup Rear Lifted Height: 0-2in; Front Lifted Height: 4-6in
6246-F-250 SUPER DUTY PICKUP 4WD 4 Door ; Extended Cab Pickup Rear Lifted Height: 0-2in; Front Lifted Height: 4-6in; Double shock front ok
only differance I see between the 2 is the 6246 is ok for double shocks on the front and the 6245 is not