Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

3.7L Flex Plate Bolts - 2007 Auto

Old Apr 7, 2025 | 09:50 AM
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skilescm's Avatar
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Default 3.7L Flex Plate Bolts - 2007 Auto

While dropping the transmission on a 2007 H3 with the 3.7L and auto transmission, I noticed the rear main seal was leaking. No biggie, just pulled the flex plate and did the job. The re-assembly is now causing some grief. The service manual states that the flex plate bolts should be discarded and replaced. Unfortunately, those bolts are no longer available. Does anyone know of an alternative, or do you just throw some lock-tite on the used ones? I have already reached out to ARP, and they said they don't have a bolt that matches the spec. Here's the part number information:

GM M10x1x30 Automatic Transmission Flex Plate Bolt 12568933

 
Old Apr 8, 2025 | 08:28 AM
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eBay seems to have some.
 
Old Apr 8, 2025 | 08:38 AM
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Google takes you right to many options. eBay is one of them.

 
Old Apr 8, 2025 | 09:13 AM
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I have called all of the parts stores that a google search finds, they all say they are backordered. Ebay pulls up a bunch of flex plate bolts, but none of the ones I see match the part number or the M10x1x30 size.
 
Old Apr 8, 2025 | 11:45 AM
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