Bell Housing Bolt Pattern

[RodJ44137]

Good morning everyone!

Does anyone know where I can get a diagram showing the bolt pattern and dimensions of the bell housing?

Or does anyone know whom to contact at GM for this information?

Any help is VERY much appreciated.

Thanks,

Rod

[More Power]

The Allison bellhousing bolt pattern is the same as that used by the Chevy/GMC gas V-8. For example, a TH400, TH700R4 or 4L80-E will bolt right onto a Duramax 6600. The torque converter bolt pattern used by the Allison is the same as TH400/4L80-E torque converter.

In profile view, the transmission body is some larger than a 4L80-E.

Jim

[RodJ44137]

Thanks For The Fast Response, Jim!!!!!:d

[woodchuck]

I have had very poor luck with the stock converters on my stock '92