Tyco's earlier F7's had the power truck mounted via two screws that threaded into a pair of plastic posts inside the shell. These ones will NOT fit in a GP20.
The later F7's (and GP-20's, C430's, etc.) had the MU-2 motor mounted to a metal ring. This ring had a tab on either side that clipped into holes carved in the shell. I'm 99% sure Tyco's standard diesel engines from this era used a universal power truck, so pulling the MU-2 off the back-end of an F7 and sticking it in the front of a GP-20 shouldn't be an issue.
Now you want to put an MU-2 in a PT engine.... I know the mounting system for the rear dummy truck on the GP-20 changed when they switched from the metal MU-2 to the plastic PT. The way the front truck mounts appears to be the same though and the holes in the shell look to be in the same place and pretty much the same size.
TL;DR you should be able to do it. Just make sure you grab an F7 that has the metal tabs sticking through the side of the shell.
Hope that helps!
Country: Canada ~
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Posted - January 13 2014 : 10:24:00 PM
Canada ~
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