80s GT Cruiser Question?

[BMX1973]

Did GT make two difference size Top Tubes on these? 

Thanks in advance. 

[Andy68]

My 83 24" is 20" TT, I'm a bit lost after that apart from dropouts were drilled. 

[BMX1973]

Thanks for the couple of PM's I have had. 

To update everyone. 

1) Junior (normally threaded bottom bracket, although could be some US versions too).
2) Standard Cruiser.
3) The 20s came in XL variants so the 24 may have done.

 

[BMX1973]

Could you post a photo? 

What model is yours? 

 

My 83 24" is 20" TT, I'm a bit lost after that apart from dropouts were drilled.