Spectre
The Deported
- Joined
- Feb 1, 2007
- Messages
- 36,832
- Location
- Dallas, Texas
- Car(s)
- 00 4Runner | 02 919 | 87 XJ6 | 86 CB700SC
No, I'm talking the F-body's T-56. The failures you're talking about weren't all that common and were mostly on the first versions to have said features. As for the power capacity, they were rated at 450lb/ft (more than Ford's, only the Dodge version was rated for more from the factory) but they can and will hold much more than that.
Rated? Sure. Would they do it? Not stock.
More seriously, GM T-56s would often wipe their synchros in less than 40K. There's something called the "drill mod" that must be applied.
I commend this thread to your attention: http://www.camaros.net/forums/showthread.php?t=142300&highlight=T56
As for how I know, at one point I was considering installing a GM T56 out of a Camaro into an XJ6. It would have fit with some sledgehammer encouragement, but I decided against it (due to interior considerations). However, I did do quite a bit of research before getting started and the amount of problems people were having with the F-Body T56 were boggling.
I'd also like to add this comment from the Camaros.net drivetrain forum from a discussion of TKO600 versus a T-56:
Rodder said:The downsides of the T56 that I know of:
- it's only rated for 450 ft-lbs. You can built it up for >1000 ft-lbs with the right components (you'll be running dog-clutch gears at that level tho--no syncros).
- several components in F-body T56's are really fragile and will bend or break if you beat on the shifter too hard. It's a little under $1k parts+labor to have one rebuilt with all that junk upgraded. Most T56 failures are one or more of these parts.
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