The Ford Barn

chuck stevens · 12-27-2021, 08:15 AM

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Terry, I have a 31 A roadster with an 8BA and a GM saginaw 4 speed. I went through the same thing you are. The GM trans had an input shaft longer than the fords so the adapter made up the difference, the front seal-throw bearing mount is bolted to the adapter, and one of the bellhousing bolts had to be counter sunk in the adapter. The only thing that's a little strange is, the trans and the bell housing have to be assembled and installed as one unit, like an auto trans. I have a ton of miles on this set-up and haven't broken it yet. I went with a 9" diff..... overkill.

12-27-2021, 08:15 AM	#6
chuck stevens Senior Member Join Date: May 2010 Location: upstate new york Posts: 758	Re: Packard 3 speed to 8BA Sponsored Links (Register now to hide all advertisements) Terry, I have a 31 A roadster with an 8BA and a GM saginaw 4 speed. I went through the same thing you are. The GM trans had an input shaft longer than the fords so the adapter made up the difference, the front seal-throw bearing mount is bolted to the adapter, and one of the bellhousing bolts had to be counter sunk in the adapter. The only thing that's a little strange is, the trans and the bell housing have to be assembled and installed as one unit, like an auto trans. I have a ton of miles on this set-up and haven't broken it yet. I went with a 9" diff..... overkill.