Offenhauser 5173 GM Manual Trans to Ford Bellhousing Adapter
Ford Y-Block V8, Many Transmissions
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This trick little spacer is just what you need if you are looking to adapt an old GM gearbox to an early Ford bellhousing. This adapter mates a GM manual transmission to 1949-1964 Ford or 1951-1964 Mercury bellhousings. Adapter also comes with a proper pilot bushing adapter sleeve. Utilizing this adapter will space the transmission 5/8" away from the bellhousing.
See specs below for bolt hole sizing and spacing to determine if this adapter is right for your needs.
T-5 and Adapter Tech Tips (Link)
- Bellhousing bolt hole dimensions:
- Top hole width = 5-5/16" center to center
- Bottom hole width = 6-3/8" center to center
- Bolt hole spacing top to bottom = 7-5/16"
- Transmission mount bolt hole dimensions:
- Top hole width = 8-9/32"
- Bottom hole width = 9-3/16"
- Bolt hole spacing top to bottom = 4-7/8"
- Bellhousing collar dimensions:
- 4.686" O.D.
- 4.346" I.D.
- Depth = .175"
- Transmission collar = 4.675"
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