5spd GT vs. 6spd MT Collar Gears

5spd GT Part # 9495034 (45 teeth on angle gear end/53 teeth on trans end)

6spd MT Part # 31256008 (45 teeth on each end)

As per the above mentioned angle gear compatibility list, the angle gear side of both collars are identical in diameter and tooth count.  The transmission side is of course drastically different and the GT collar is actually thinner than the angle gear side.