I finally got the upgrade trucks for my dummy GP-7 and ran in to a minor problem when I went to install them.
The original trucks use a 3.5mm screw to hold the pilot/footplate casting in place. The hole for this screw on the upgrade trucks is sized and tapped for a 3.0mm screw. Fortunately, I own a set of metric taps and was able to drill the hole out and re-tap it for 3.5mm.
But if the new upgrade truck sets are going to have a different size hole than the originals, they should really include a couple of 3.0mm flat head screws for making the change. Since most people don't own, or have a simple source for, metric taps.
Len
Hi Len,
Thanks for the information. If anyone else has this problem contact customer service (http://www.bachmanntrains.com/home-usa/service.php) to obtain a replacement set of screws.
Regards,
3rail