Actually Chuck, I believe they are called "Coupling Rods or Connecting rods" .  But evidently you knew what I meant even with my poor wording . Sorry I'm not an expert ,

Thanks Loco Bill,  but that hasn't worked .Somehow the wheels still get out of alignment and jam . Guess I'll just go with a new chassis & keep the old one for parts.

sorry I assume the method of repair would be the same for any large scale.
It's a 4-6-0  White  Christmas train set I guess.
Chassis is same as 90023 or 90025 . I was going to order the 81095 Chassis because it is the same color
The side rails do not stay lined up proper on the 3 wheels ,same problem or either side . The pins fall out ,do not hold rails where they are suppose to be .

The crankpins fall out & the side rails become mis-aligned & then the wheels jam up . I can't keep pins in and side rails lined up with the 6 wheels . Each side gets jammed .
I'm ready to order a new chassis to fix it ! Is there a way to fix it Thank you

   I have a White Christmas set #90023 with 4-6-0 locomotive  from a long time ago & the side rails/coupling rods are not aligned proper because the pins came loose . I was never able to repair it myself & one pin is partially broken. It's been in the box waiting for someone to repair it .
   I just found this site. I was ready to mail it in for repair when I saw the #90025 chassis available for order.
Will this fit my #90023 locomotive ??  I don't think I would have any problem swapping chassis.
Thank you in advance & Merry Christmas !

Does anyone know how to alaign the side bars and keep them correctly alaigned ?? I guess what I'm asking is ,"can I do this repair myself ?"
Thanks

    Hi ,I'm new here, just found this web site.
  I have a Bachmann G scale train set I bought about 8 years ago. About 6 years ago the side bars came loose on the steam engine.     They move and lock up the wheels when I attempt to run it. I have been unable to find anyone to repair it.
Does anyone know how I can repair it ? Or where I can get it repaired ?
I live in north central Pa., Williamsport. 
                                                               Thanks