On the old 900's there are no springs that fly or fluids to come out and ruin you flooring there in the chicken house that has been converted to the RTV custom parking spot. The worst part is the shims that fit the old probably dont work the same on the new and you will have to figure out which new shims to use. As for me, I just shorted across the wiring as your research has probably found. Actually the poopies getting in and starting the machine and driving off became a reality the other day. There was no problem except the mail lady got in a drag race with them as she pulled away from our box and missed delivery to the two old ladies across the road....….Good luck.....Dennis