A833 overdrive V8 bellhousing?

Coolvibes said

What would be the easiest / best way to mount an early A 833 V8 bellhousing to a later A 833OD? Is there an off-the-shelf front bearing retainer that could work? Or cut down the 833OD current bearing retainer to fit the BH smaller opening? Or open up the early 833 BH?

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Depends on what size front bearing in the overdrive. A/F O/D's could have had 307 or 308. 307 bearing we simply change retainer. 308 bearing, and we need to machine the retainer to 4.805" and the bell to 4.807" to fit the 2 together. 308 bearing will be C13157 casting number on the retainer, 307 would be C97728.