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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: May 2010 Posts: 132 Wrench Fetcher | | Wrench Fetcher Joined: May 2010 Posts: 132 | I have the granny gear 4 speed , and want to remove the speedo drive gear to see what is going on in there.
The coupling has a 15/16" hex. I tried to unscrew it, but it is very tight. It moved, but it took a lot of force to just budge it a little.
Before breaking anything, I thought I'd check here. Is it OK to unscrew that part to get to the drive gear? | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Yes, it unscrews. I had to use the socket nearly all the way out on my '54. | | | | | Joined: May 2010 Posts: 132 Wrench Fetcher | | Wrench Fetcher Joined: May 2010 Posts: 132 | ok, thanks, I'll just crank on it later | | |
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