Easy. I use a long funnel, small in diameter, with the sled flat on the floor. I remove the 1 bolt that is on the back of the DD, and let the fluid run into a small drain pan. When it's empty, I roll it over on its' side, on a blanket, and use a piece of clear hose to fill it. When the bottle is empty, replace the bolt, and you're done. 15 minute job.
05 EFI, D&D 3 degree timing key, D&D y pipe, D&D clutch kit, BMP intake, BMP fuel reducer, D&D shift assist, BDX rock rollers