'73 Road Runner

[sleepychallenger]

i thought that the GTX option ended in 71?

[71bigblock]

Pretty sure the GTX package was combined like with the satellite one after 71, something weird like that.   

[Andrew]

After 1971 they stopped making true GTXs, and GTX just became an option package on all 440 equipped (U code) Roadrunners.

Also, during those years the 440 was only available with the torqflite. The largest engine that could be had with a 4-spd was the 400.