As much as I'd like to buy my son his own sled to go with me the coin just isn't there right now so I'm looking at picking up one of these 2 up seat add ons for when I take him with me on the sled and wondered about the bracket system for Yamaha sleds.I've found a few for sale but the brackets are for a Viper and I have an SRX but these chassis are supposed to be almost the same I think so will I be able to use the Viper mounts or will I have to buy SRX specific ones?I looked on the company's web site but couldn't tell if they are the same brackets or not.