First time posting although I've had my set for many years.  It is an old 4-6-0 (Santa Fe 49), version 2 I think.

I see Bachmann is selling Loco Chassis 81092 as a replacement chassis for (I think) my loco.  Am I right on that?

Does this chassis come with detailed instructions for how to do the replacement?  I'm fairly handy with tools,
but I'd really like to have instructions, just in case.

Also, the picture doesn't show the back end of the loco.  What type of connector is on the new chassis.

Thanks.