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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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| | | Forums66 Topics126,776 Posts1,039,271 Members48,100 | | Most Online2,175
Jul 21st, 2025 | | | | Joined: May 2013 Posts: 173 Shop Shark | | Shop Shark Joined: May 2013 Posts: 173 | I have an original 40, and the rear axle does not have an axle vent. After thoroughly inspected by several people, it looks like one never existed... I wonder why? Anyone else have one on theirs. Was it special or was it just overlooked at the factory? It does have the optional 4.55 gears | | | | | Joined: Mar 2002 Posts: 9,112 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,112 | If it had a torque tube, there would have been a vent in the tube. | | | | | Joined: Jan 2001 Posts: 5,320 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,320 | Look half way up the torque tube.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: May 2013 Posts: 173 Shop Shark | | Shop Shark Joined: May 2013 Posts: 173 | Gotcha, I see it now! Ok, so I assume mine is clogged bcs I always get oil running out and down the wheels after driving. How do I replace one?
Last edited by heavy40chevy; 07/24/2015 4:07 PM.
| | | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | Anytime I've had gear oil running out by the wheels the axle seals and or axle bearings were bad. Is the rearend differential housing over full?
Rick G.
1939 Chevrolet Stake Truck
| | | | | Joined: May 2013 Posts: 173 Shop Shark | | Shop Shark Joined: May 2013 Posts: 173 | Ok so I have found this axle vent on the torque tube like 68dave said but nxt question (this maybe a dumb question) but how do I replace it? Also is this like a generic part that i can pick up from my local parts house where it fits 100000's of vehicle or is this a special part I'll have to get at chevs of the 40's or somthing like that?
Don't think its overfull, but i'll double check (rickmg) | | | | | 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 | Not sure on yours but some vents are screw in some are pressed in. Are you sure yours is stopped up?? I think its rare if it is.
...and yes, a couple vendors make the vents but not sure if they are for a torque tube as well as for a rear housing.
If its not over full, I go along with rickmg. The seals are bad, or perhaps the bearings are bad and causing the seals to leak. Are you having any rear axle noise? Maybe you'll be lucky and just the seals bad. | | |
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