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| | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | 1939 3/4 ton Chevy Stake Truck
The rear axle housing is very slowly weeping gear fluid from the spring pillar block area on the passenger side. I'm going to remove the trans and rear axle housing this Spring to replace the pilot bearing and the okie seal and bushing in the drive shaft. Any suggestions on how to repair the axle housing.
Rick
1939 Chevrolet Stake Truck
| | | | | Joined: May 2015 Posts: 11,067 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,067 | It sounds like there's a crack or may be a pinhole where the spring mount is welded to the axle tube. You should be able to weld that to correct the problem, unless the crack is too long, in which case, I'd be looking at replacing the whole axle housing for safety reasons, or at least have a professional welder do the work for you.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | There are no spring mounts on the axle housing. The axle housing pivots in a 2 piece pillar block in a bed of grease.
Rick
1939 Chevrolet Stake Truck
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | There might be a factory vent hole for the axle that is plugged allowing oil to be pushed out every time the axle is warmed up by driving. Could be a short plug or something like that!
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: May 2015 Posts: 11,067 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,067 | There are no spring mounts on the axle housing. The axle housing pivots in a 2 piece pillar block in a bed of grease.
Rick Isn't there something welded to the axle tube to keep it from moving sideways? If it's covered in grease, how can you tell it's leaking?
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | The axle housing has a machined steel protusion that is part of the axle housing that rides in a groove in the pillar block, preventing it from moving sideways. The gear lube is leaking from the pillar block and down the ubolts. I have to move the rear axle housing rearward to remove the drive shaft from the transmission. Then I'll know exactly where it is coming from. My hoist lift is on the cold side of the barn, that's why I'm waiting for Spring. I could prop up the axle housing and remove the ubolts and drop the pillar block, but I want to replace the pilot bearing and the okie and bushing in the drive shaft tube.
Rick
1939 Chevrolet Stake Truck
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