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3 speed transmission to bellhousing bolt pattern


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As a long retired engineer I'll suggest that unless you have machined everything with the intent of using shoulder bolts then bolts and bolt holes should never be used as a means of registration. MaMopar says that TIR should never exceed 0.007" and bolts simply will not hold that tolerance. Best wishes.

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The use of flathead bolts is exactly how the adapters previously offered for this were designed. IDK if they used them for mating the adapter to the stock bell or not right now. I may change to a steel adapter plate, locating it then weld it to the bell. It's all in flux right now, but it's been done mostly as I've shown it and it worked. You just can't buy that adapter anymore. I work as a design engineer right now, and live in Solidworks every day. Things often look great on the screen, but the models don't always tell you everything. I can't find a model for the stock bell, or even accurate drawing to create one. Same for the trans.

 

If anyone can supply drawings for the bellhousing or an A833, I would create a solid model and that would be available to anyone who wanted it.

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Taking a closer look at the AoK adapter I was trying to copy, I realized I had mirrored it partially. Here is a new image. The exact outline is NOT the same as the AoK part, because I'm only including a single bellhousing pattern. The adapter also only bolts to the bell using flathead bolts. The mounts for the transmission will be straight tapped holes and the trans mounts as per normal.

 

 

 

Edited by lostviking
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The reason I started this project was because I had the belief that the AoK adapter plates were no longer available. I wouldn't post a copied design otherwise. I spoke with George Asche for the first time today and he tells me that they are doing another run of the adapter plates. I'm therefore going to purchase one from him.

 

His contact information or Tim Kingsbury's has been posted by Tim, so I won't redo that here.

 

Cheers.

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