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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: Oct 2009 Posts: 19 Apprentice | | Apprentice Joined: Oct 2009 Posts: 19 | On a 51 GMC 4 Speed, what is the correct seal for the steering colume? I see a round seal is available but the hole where the colume goes through is not round but oblong in shape. If I just install the round seal there is a big gap still in the fire wall. If anyone one has any answers I would greatly appreciate them. Thanks, | | | | | Joined: Mar 2007 Posts: 863 Shop Shark | | Shop Shark Joined: Mar 2007 Posts: 863 | It is oval to allow a 3 speed shift rod.... | | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | I've got a 53 GMC setting in My drivway and it's a 3/4 ton with a 4 speed it has the oval floor seal in it the one used for a 3 speed shift rod I do not know alot about GMC's but it looks like it came that way nothing else on the truck has been changed .
Pete | | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | On a 4 speed, it should look something like this. The 3 speed has another hole for the shift rod at the top.
Bruce | | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | That is the only flange that is presently available from the vendors Bruce. But, the original cover was a teardrop shaped one, just like the one for the three speed except that it didn't have the upper hole for the shift lever. I had an original flange on mine when I brought her home; think I still have it around here somewhere. So once again, the after market reproduction parts are actually incorrect, just someone’s interpretation of what they thought it might have been.
The teardrop shaped hole in the toe board is the same for all the trucks 3sp or 4sp.
Denny Graham
Sandwich, IL
Denny G
Sandwich, IL
| | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | ....Mmmm, I'll have to dig out my repo Denny but darn if I don't believe its actually teardrop shaped? I've had it for a couple years.... I had started buying up parts as I tore the panel apart. Now I'll have to go dig it out to check and see.
IF it is the teardrop shape I don't need it as I am not going to run the shift lever. | | |
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