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Trans Coupler Threads Stripped

Well, I learned a valuable lesson; always get both transmission coupler bolts started before doing final tightening on either of them. I tightened down the front bolt before turning the engine over to do the rear, and it must have been far enough off that I sheared the threads off on the rear bolt against the sides of the groove. Can't really think of another explanation.



What are the chances the threads in the coupler are still good? I *really* don't want to have to drop the trans again. I'm a slow worker. Any way I can test them without risking getting a new bolt stuck?

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Current: 1986 944 Turbo - Sapphire
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Last edited by Brozoar; 09-17-2018 at 10:09 AM..
Old 09-17-2018, 08:11 AM
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Threads will be fine. Get a new bolt and get them both started before tightening, like you mentioned.
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Old 09-17-2018, 08:32 AM
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Yep done this a few times. Coupler is fine
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Old 09-17-2018, 09:11 AM
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It's good to hear I'm not the only one to commit this gaffe. Thanks, guys!
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Current: 1986 944 Turbo - Sapphire
Past: 1983 944NA - Black (RIP)
1985.5 944NA - Guards Red (in purgatory)
1985.0 944NA - Maraschino Red (traded for a Volvo 244 )
Old 09-17-2018, 10:10 AM
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Yeah, get the alignment perfect before doing rear bolt.

With the front bolt tightened, you can actually pry on square block to shift driveshaft fore-aft so hole of 2nd bolt is perfectly clear. I use a motorcycle tyre lever.
Old 09-17-2018, 10:06 PM
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Also put that coupler in a vice or something else to secure and clean the threads with tap.
Old 09-20-2018, 05:27 AM
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I believe the manual recommends to replace these bolts as they one-time use (micro-encapsulated).

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Old 09-20-2018, 02:59 PM
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