The tail shafts are completely different.

Get a bigger monitor and run a higher resolution,..
The pics are only 25% of my screen at 1920x1080 resolution,.. (Shrug).

Here are some more pics of each,.. maybe you can see the differences better.



TKO 500/600


3550 TKO


500/600 TKO shifter


3550 TKO Shifter




I have no reason to make this up.
3550 is NOT the same as 500/600 TKO.

Either you had a 500 or your buddy was duped or you just thought they looked the same. Take your pick.

Hurst