error with train i made derailing in railyard and ingame

[groudonrules]

ok so i found no class 70 powerhaul on the download station i built my own and it just derails as soon as it is inserted ingame and has big yellow x in railyard :''''( any suggestions what now ?

 

[whitepass]

You have the bogyes in the wrong order, should be:
a.limfront
a.bog0
a.bog1
a.limback

 

[groudonrules]

do they go in extensions i model in sketchup then import it to gmax

 

[groudonrules]

woohoo its working thank you for your wonderfull help