Newbie here and this was extremely helpful, thankyou

Thanks for the vid. A suggestion: instead of the process you go through with the electrical tape, get yourself a good pin vise, small drill bits and some small screws to mount the coupler box to the under-frame. That is why there is a hole in the coupler box. If you still want to add a dab of model glue toward the back end of the box you can, but after you have screwed it to the car. With the screw you can easily take things apart if you have to to fix something-you can't with your tape and glue method. Also, those coupler boxes you used are not meant for the Kadee whisker couplers (148s might be the kind you used). Those boxes are for Kadee #5s, used with the bronze metal spring. Kadee makes a different box to use w/there whisker couplers.

I actually purchase a used Tyco Swift refrigerator car that someone added body mounted couplers to and chaned the trucks to metal ones with working springs. I have recently discovered it's a popular car to modify.

Very grateful to you! I can now upgrade my ancient boxcars!

I have a question for you I have a three wheel truck that the clip is broke on one side how can I fix it so the truck doesn’t fall off

I have found you want the body on the chassis when you said the coupler or the comforter sets too far back and underneath the car throwing off the distance between the cars....

I just wanted to say you..do not have to cut the original copper pocket off the athrerine frain it will take Katie coupler number fives just fine....

Looks like Kadie whisker coupler #148s good standard 5s.