Forum Members and Bach-man.  Does Bachmann have a recommendation for alleviating a problem I am having with my Spectrum 2-6-0 Mogul center flangeless driver dropping off the rails creating a wobble which I am sure creates extra stress on the drive line.  I had to remove the guide pin assembly from the frame between the center driver because the locomotive would hang up and stop when going through diverging paths on switches and would also jump going through the straight path of the switches (switches are USAT solid brass).  So now removing the pin assembly has created the situation where the flangeless center driver drops off the inside rail going around curves.  (even 20' diameter curves). 

Would fabricating and installing a plate the same size as the original plate removed - but without the two pins, resolve this issue, or do I need to shim the axles with nylon washers to take up the slack, or is there a better solution to this problem?  Other than this center driver issue, the locomotive is tracking and running great on the USAT track and switches (8' to 20' dia switches and curves). Any advise is appreciated.  Thanks!
Mark 

Friends:
Looking for some advice on powering lights on a G scale Spectrum 2-6-0 Mogul #81498 (DCC ready).  I am adding an Airwire G3 DCC board, Phoenix P8 sound and 14.8v Li-ion battery power supply to the locomotive.  I am installing the Airwire and Phoenix boards, speaker and the battery all in the tender (yes it all fits).  The loco and tender have two connections between them.  A two pin to the chuff trigger which will be connected to the P8 board.  The four pin connector I plan to use to run power to the lights on the locomotive and the smoke generator (one pair for the lights and one pair for the smoke generator).  Finally I am adding a third two wire connection from the Airwire board direct to the motor on the locomotive.  I have also disabled/removed all track power pickups on the loco and tender, so only the battery can provide power.

My question is this:  It appears there is a resistor in the lead to the headlight, but I cannot find any resistor in line to the LED's that light the ashpan and firebox.  With the 14.8 V battery being used, will I need to add a resistor in the line from the battery to the ashpan/firebox LED's, and what size resistor should I use.  I am going to go direct from the battery to the lights, so that when I switch on the battery, the lights will light immediately which will show I have power.  Since steam loco headlights were typically lit once and left on, and the ash pan/fireboxes would always have light when the loco is under steam, I figure these can be on all the time the battery is switched on.  But I need to know if I need to protect the LED's in the ashpan/firebox with a resistor using the 14.8 v battery.  Thanks in advance for the feedback.  Mark