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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: Nov 2012 Posts: 27 New Guy | | New Guy Joined: Nov 2012 Posts: 27 | I am converting my '66 from a manual transmission to an automatic. Has anyone who has done this conversion found a good way to plug up the hole in the firewall for the clutch rod? I know I could just put in the clutch boot and seal up the little hole but I was wordering if there is a better way. Perhaps someone found a grommet that fits? Any other ideas? Thanks. | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | NAPA will usually have a variety box of rubber grommets that includes some without holes [plugs], might check that - also, electrical parts suppliers have various size metal plugs for junction boxes that might work .... be creative
Bill | | | | | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | I made a plate using sheetmetal and attached with two screws. OE automagic trucks had either a plate or an oblong plastic plug. | | | | | Joined: Nov 2012 Posts: 27 New Guy | | New Guy Joined: Nov 2012 Posts: 27 | I'll take a look at the grommets at NAPA but unfortunately the hole was not simply punched out but has a 1/8" or so rolled edge for the boot installation which means most gromments I have won't work.
OE automagic I am unfamiliar with . . . | | | | | Joined: Mar 2009 Posts: 788 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 788 | | | | | | Joined: Nov 2012 Posts: 27 New Guy | | New Guy Joined: Nov 2012 Posts: 27 | Now there's an idea. I'll have to see if I can find one large enough. | | | | | Joined: Feb 2007 Posts: 434 Shop Shark | | Shop Shark Joined: Feb 2007 Posts: 434 |
R-Bo
1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family
| | | | | Joined: Nov 2004 Posts: 1,552 Shop Shark | | Shop Shark Joined: Nov 2004 Posts: 1,552 | The factory plug is:
Caplugs #B-385
We have a few good, used ones, if you are looking for a factory-correct solution, to remedy the issue.
Last edited by 4-5-6 Chevy Trucks; 02/27/2013 2:03 PM.
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