" rear diff vent mod please? "
Thread Starter
Racer
Joined: Aug 2005
Posts: 469
Likes: 1
" rear diff vent mod please? "
hi there guys,
i saw a few places like ecklers,corvette central and so on sell a
REAR DIFF VENT!
it looks like a small rubber/plastic tube/filter on top and just slides or bolts on top of diff housing that would have to be drilled.
does any one know what this is meant for please?
what benefits would it be by using one?
may be let out some diff housing preasure i guess?
its only worth $10 or so for it!
cheers
glen
Australia
i saw a few places like ecklers,corvette central and so on sell a
REAR DIFF VENT!
it looks like a small rubber/plastic tube/filter on top and just slides or bolts on top of diff housing that would have to be drilled.
does any one know what this is meant for please?
what benefits would it be by using one?
may be let out some diff housing preasure i guess?
its only worth $10 or so for it!
cheers
glen
Australia
Race Director
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Many vehicles have differential vents. These vent the entire axle assembly (solid rear axles). I'm thinking that if the Dana doesn't vent the D36's and D44's, it's because they are just the differential case, not the entire rear axle (independant rear suspension).
I'd have to think that if the D36/44 needed a vent, Dana would have designed it in.
Save your ten bucks.Larry
code5coupe
Last edited by rocco16; Feb 13, 2007 at 03:38 PM. Reason: correction of error
Racer
Joined: May 2006
Posts: 293
Likes: 0
Originally Posted by rocco16
I'm thinking that Dana doesn't vent the D36's and D44's because they are just the differential case, not the entire rear axle (independant rear suspension).
I'd have to think that if the D36/44 needed a vent, Dana would have designed it in.
I'd have to think that if the D36/44 needed a vent, Dana would have designed it in.
They did. For 1984 - 1990 both D36 and D44, the part number is 3738462. This is not a mod. ALL diffs have a vent. Another "trick of the week" down the drain.
Thread Starter
Racer
Joined: Aug 2005
Posts: 469
Likes: 1
hi guys,
thanks for your replys r.e vent mod!
Aardwolf i think c4techie is refering the drain bit as he means i guess that the diff mod vent is a waiste of time or they already have a vent in them?
cheers
glen
thanks for your replys r.e vent mod!
Aardwolf i think c4techie is refering the drain bit as he means i guess that the diff mod vent is a waiste of time or they already have a vent in them?
cheers
glen
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
I've seen many differentials and transmissions that have a tube from the vent port on the case to a higher position.
I would think, for a vehicle that is used off-road and in high water, it would be a good idea to have a "snorkel" vent, but for a Corvette, I don't think it would be necessary, unless you are going to live in New Orleans.
Tom Piper
Last edited by Tom Piper; Feb 13, 2007 at 05:28 PM.
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Drifting
Joined: Mar 2004
Posts: 1,504
Likes: 0
From: Byron Center MI
Racer
Joined: May 2006
Posts: 293
Likes: 0
Originally Posted by sxyvet
Aardwolf i think c4techie is refering the drain bit as he means i guess that the diff mod vent is a waiste of time or they already have a vent in them?
Originally Posted by C4Techie
Originally Posted by rocco16
I'd have to think that if the D36/44 needed a vent, Dana would have designed it in.
Originally Posted by C4Techie
They did. For 1984 - 1990 both D36 and D44, the part number is 3738462. This is not a mod. ALL diffs have a vent. Another "trick of the week" down the drain.Last edited by C4Techie; Feb 13, 2007 at 06:53 PM.
Drifting
Joined: Mar 2004
Posts: 1,504
Likes: 0
From: Byron Center MI
Here are the pictures. This is out of my '89.
This picture is the inside of the batwing. As you can see there is a baffle keeping the flung gear lube from hitting the vent directly.
This is the outside. It is on top of the batwing and to the pasenger side. Hope this helps. Tim
This picture is the inside of the batwing. As you can see there is a baffle keeping the flung gear lube from hitting the vent directly.
This is the outside. It is on top of the batwing and to the pasenger side. Hope this helps. Tim
Le Mans Master
Joined: May 2005
Posts: 5,214
Likes: 65
From: Queensland, AUSTRALIA
Glen, stop using bold letters...it doesn't help.
Many vehicles have differential vents. These vent the entire axle assembly (solid rear axles). I'm thinking that if the Dana doesn't vent the D36's and D44's, it's because they are just the differential case, not the entire rear axle (independant rear suspension).
I'd have to think that if the D36/44 needed a vent, Dana would have designed it in. Save your ten bucks.
Larry
code5coupe
Many vehicles have differential vents. These vent the entire axle assembly (solid rear axles). I'm thinking that if the Dana doesn't vent the D36's and D44's, it's because they are just the differential case, not the entire rear axle (independant rear suspension).
I'd have to think that if the D36/44 needed a vent, Dana would have designed it in.
Save your ten bucks.Larry
code5coupe
Thread Starter
Racer
Joined: Aug 2005
Posts: 469
Likes: 1
no bold letters,he doesnt like it!!!!
hi casey,
how are ya buddy!
thanks for your reply man!
did you hear what (rocco16) the man said casey,
stop using "bold' letters glen,it doesnt help!!!!
i love your bold letters mate,cool!!!!
thanks
glen
how are ya buddy!
thanks for your reply man!
did you hear what (rocco16) the man said casey,
stop using "bold' letters glen,it doesnt help!!!!
i love your bold letters mate,cool!!!!
thanks
glen
