t56 mainshaft

[OutCast]

There is a Viper Mainshaft upgrade, but that isn't a big deal. The Magnum is basically a way different stronger version.

Curious why you say the viper mainshaft upgrade is no big deal?

I broke a synchro ring then upgraded to the stage 2 rebuild from thegearbox. Next I twisted the splines on the spicer slip yoke of my Denny's nitrous ready shaft so I upgraded to a Mark Williams chromoly yoke. Then I broke the mainshaft. Now I have the viper 30 spline mainshaft conversion but haven't run it yet. I figure input shaft or clutch problems coming up next...which is also the reason I added a McLeod SFI bellhousing this time.


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[noice]

Curious why you say the viper mainshaft upgrade is no big deal?

I broke a synchro ring then upgraded to the stage 2 rebuild from thegearbox. Next I twisted the splines on the spicer slip yoke of my Denny's nitrous ready shaft so I upgraded to a Mark Williams chromoly yoke. Then I broke the mainshaft. Now I have the viper 30 spline mainshaft conversion but haven't run it yet. I figure input shaft or clutch problems coming up next...which is also the reason I added a McLeod SFI bellhousing this time.


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It will help some, but that piece isnt rated for much more than stock. It will break eventually.

[OutCast]

D&D rates it 200lb.ft (700) over the stocker(500) which should be plenty for me...for now, lol.

I already swore to go auto if there's another major tranny issue with this one so I just hope it stays together for a little while. I have yet to find a part that won't break "eventually", and in my case it's usually sooner than later. All my carnage started shortly after changing to a sintered iron disk, that's a grabby som-bitch and easily aids in finding the next weak link.

For the sake of pics, here's my broken shaft next to the 30 spline.