differential question
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Laughing Gas
Joined: Dec 2009
Posts: 938
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From: Bishop, CA
differential question
OK, in the process of my engine swap I ended up with a rear axle with two fill points...one in the housing and one in the 3rd member.
There is almost a pint and a half difference in the levels, with the one on the original housing being the lower of the two.
I filled it to the higher of the two(in the 3rd member)and now it's starting to kick fluid out of one of the axle seals(which were also replaced along with the outer bearings).
I'm just wondering if it'd be ok to run the newer third member with the lower level of fluid? Which filler hole would you use?
Oh, and I already pulled the vent bolt and blew it out, it wasn't blocked.
There is almost a pint and a half difference in the levels, with the one on the original housing being the lower of the two.
I filled it to the higher of the two(in the 3rd member)and now it's starting to kick fluid out of one of the axle seals(which were also replaced along with the outer bearings).
I'm just wondering if it'd be ok to run the newer third member with the lower level of fluid? Which filler hole would you use?
Oh, and I already pulled the vent bolt and blew it out, it wasn't blocked.
Cargo Master
Joined: Oct 2005
Posts: 2,084
Likes: 94
From: Stanton, Michigan, USA
Does the vent bolt also have a piece of tubing on it?
I have found that the tubing attached to the vent bolt can be plugged. If you didn't check it earlier, I'd suggest you may want to blow air through the tubing or even push a piece of stiff wire through it to ensure it is clear.
When I lived in TX, mud-dobber wasps would pack mud in the tubing end, plugging the vent tube. I wound up adding a 'vent check' to my bi-annual tuneup list.It might also be that the new/clean gear lube is a bit thinner than the old gear lube and now the seals leak due to the crud being drained away from the sealing edge.
Sounds like it's time for new seals before they ruin your brake shoes.....
BarnieTrk
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Laughing Gas
Joined: Dec 2009
Posts: 938
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From: Bishop, CA
This is the old style vent bolt with just a cap and no hose...it's clear. Seals were new a month ago when I put the rear end together, bearings are also new and theres no groove in the axle where the seal rides. I'm thinking I should use the lower filler hole like John said. Of course I won't be so lucky as to have the lowering of the level stop my leak, I'll end up having to replace the brand new seal again.
It's always something.
It's always something.
Hotshot
Joined: Dec 2005
Posts: 14,377
Likes: 608
From: evansville in
Wow 2 fill holes.That must be nice.My Mustang with a 57 tbird housing and ? center section wound up with NO fill hole! The center did have a boss where the fill plug "could"have been so just drilled it.
I would use the fil hole on the housing as the correct one. How much fluid did you put in when you assembled it?
I would use the fil hole on the housing as the correct one. How much fluid did you put in when you assembled it?
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Wow 2 fill holes.That must be nice.My Mustang with a 57 tbird housing and ? center section wound up with NO fill hole! The center did have a boss where the fill plug "could"have been so just drilled it.
I would use the fil hole on the housing as the correct one. How much fluid did you put in when you assembled it?
I would use the fil hole on the housing as the correct one. How much fluid did you put in when you assembled it?
John
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Laughing Gas
Joined: Dec 2009
Posts: 938
Likes: 0
From: Bishop, CA
yeah, my donor trucks got no fill point now. I used the higher of the two, but I'm gonna drain it out. I didn't want to have the level too low and screw up the new gears.
Seals are cheaper.
Seals are cheaper.
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