let me get some pictures next week. the sled was a 1999 600 xcsp. you have the two side rails that go along the tunnel. cross member in the back with furniture trick nuts so you can screw in from the tunnel. a front cross member that fits into the original mounting bracket. both these lay flat on the tunnel. then up on the top: a cross member in the back with holes so you can screw into the original seat mount. then a cross member towards the front that you will have to mount into the plastic of the seat. in the back, i did a 45 degree cut to match the tunnel. i also put 25 LED lights(siliconed them in) for an extra brake light. on the original seat; for the front: take out all the staples and half way to the back. you will have to start cutting the plastic seat frame. cut the seat frame so it kind of fits to the gas tank. then take an electric knife (don't tell your wife you are using it on the snowmobile, mine found out and got real mad) and start to contour the foam to fit nicely to the seat. leave extra foam because you can easily manipulate the foam when you wrap the original cover back around. the harder you pull on the vinyl seat the more it puffs up and pulls back. when you have the front end formed, staple (electric stapler) the cover back to the plastic frame. then permantly nail, glue all your wood together so it fits nicely. i used framing nail gun and gorrila glue. then i wrapped the wood frame with vinyl from walmart. and stapled that so it looks nice. the frame then gets permanatly fixed to the seat. then the whole thing fits on the sled like original. i used the thin pallet wood because it was a hardwood and it was thin with square edges. i was going to rip a 2x4 but it has round edge and i was afraid of moisture. my seat ended up 3.5" taller and 4" forward. i actually got to use the bump in the back of the seat like it was intended. for the stearing cross member, it is bolted to the tunnel. i took that off and welded on some gussets on the top corners. to stiffen it up. when you put on risers, you add a lot of torque and the cross member sways. i did this because i wanted it to sit like my buddies 2008 dragon. it sat very comfortable. i also put an edge skidframe in as well. the standing over the bumps made the sled night and day better. i'll find some pictures.