yea its true they all have the same #..its on the last 2 numbers that are diffrent...depending on ur frequncy..they sent me 1 me 1..im mad tho./..i thought my chassi wasnt working when it was my controller....so i took apart my old chassi and broke most of it...when i got my new 1 the controller stil wasnt working..then i put in new batterys and it fixed a lil...so0o0o he shipping came in about 5 days or so..im happy with it..i think they accedntly gave me a 2.6 motor 2