Tremec TKO 500. Feedback and opinions?

A Tremec 3550/TKO/TKO 500/TKO 600 is a completely different transmission from a T5. Strong and almost bulletproof unless you run them without proper lubricant or full throttle shift without the clutch.

A Tremec T5 is still the same T5 that is prone to self destruction when used in a street/strip or racing environment


T5, all versions used in 5.0 Mustangs


Tremec 3550/TKO /TKO500/TKO600 AFTERMARKET replacement for T5 - handles racing environments with ease

See http://www.ttcautomotive.com/English/products/tremec.asp for more information - check out the "Light Duty" group, since TTC makes monster transmissions for big trucks as well as passenger cars.


Both the 3550 & TKO 500 & 600 use a different bellhousing. TheTKO 500 uses the same clutch disk as the T5. The TKO 600 uses a 26 spline input shaft and a chevy clutch disk.

The 3550 uses the same output shaft yolk as the T5.
Both TKO 500 & 600 use a different output shaft yolk.

I'm pretty sure the 500 also has the option of a 10 spline input shaft.
Although i'm not sure whey anyone would spend this much and opt out of the 26 spline. Most times when you pull a trans you change the clutch anyway.
I also wonder at this point why the tko500 still exists (if it doed)

Aftermarket transmissions has gotten absurdly expensive.
On the surface it's easy to look at the price of a tko and think, hell I might as well get a t56 magnum, but my best guess is after a bellhousing, clutch, crossmember and the rest of the supporting parts it would be $5000+.