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Hi everyone, this is my first post! Ive been on NastyZ28 for years but finally ditched the SBC in my camaro. Thats why I'm here. I have a LS3 (actually L92) that I'm trying to mate to a Super T10 4 speed that was original to the car. I did my research and found that I needed the McLeod 460535 flywheel and the McLeod 8617 pilot bushing. Both of which extend out 0.4 of an inch to mimic mounting to a SBC crank from the transmissions point of view. I am using my stock 168 tooth original aluminum bell housing. I am mocking everything up and it doesn't feel right. I had to drive the pilot bushing really far in to get the transmission to mount flush, and there is no play at all. By all appearances, I could have used a standard bushing and still been fine. I don't want to drive it in any more in case I need to pull it out. Any ideas? Im taking this slow as I don’t want to screw it up so I thought id take a break and post here. Pics below. Thanks! You can see I have no play at all on the shaft. This bearing should not be in that far?
Edit: I think I need to remove that bushing and go with a GM LS7 bearing. That should put it right where it needs to be with 1/4” of the input shaft visible. Sigh. For some reason I imagined this swap being smooth and trouble free.
Last edited by Rayden2009; Jul 28, 2024 at 09:13 AM.
You want the angled end of the spline section to have some clearance in case of material expansion under heat. If you can slide a .030 feeler in (and scrape marking cpd off the end if it,) you're good. Alternately spin the crank and see if the maindrive stays stationary. A muncie pattern shim should be quick and cheap if there's any doubt.
Anyone on Nasty suggest you go 6 speed yet?
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LS3 to Super T10 Need Help 
