If anyone is looking for these Tamiya is still making the longer stock arms that came on the scratch and dent truggy. The said that the shorter upgraded arms have been discontinued. I e-mailed them back and asked if they would be making those again and I'm still waiting for a reply.
Got this truggy back up and running this weekend. Wow I didn't remember how quick it was. It was fun to be back at it after a few years not playing with it. Next year we will have to take it with us on a few vacations. I was teaching my seven year old son to drive it too, it did ok but he has a heavy finger.