I have a TKO, but its the older version before there was a 500/600. It was either 3550 or TKO...what is the difference
between the older TKO and the newer 500/600 ones? I bought mine back around 03 and cant remember spit about it. lol
There is more to it but the short and sweet is :
3550: 350 ft/lbs torque rating, 10 spline input shaft, 28 spline output shaft.
TKO: 375 ft/lbs torque rating, 26 spline input shaft, 31 spline output shaft.
TKO-500 500 ft/lbs torque rating,
TKO-600 500-600 ft/lbs torque and has a different gear ratio than the 500