Just because i only Race the 250s for now doesn't mean I don't know the 292s But anyway your right The Frame mounts are not the same. to save some money look around the bone yards/junk yards for any pick-up, Vans, Older SUVs and even the bigger Box trucks ( Ups ,Bread trucks even the Older small school buses had the 292s)I was in a scrap yard just a few weeks ago and they had a few UPs trucks with the 292s in them. One even had the dual exhaust. But anyway If you don't have any luck Let me know and I'll go see if they are still there. hope this helps }[oooooo]