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Joined: Feb 2004
Posts: 24,558
H
Kettle Custodian (pot stirrer)
I've only done a very few pinion seal changes that didn't end up also involving changing at least one bearing, either immediately, or after only a few miles of running on the new seal. The reason a seal starts leaking is usually looseness in the bearing that allows the pinion flange to wobble and damage the seal surface. Getting the preload right on a used bearing can also be a challenge when retightening the pinion nut.
Jerry


"Freedom's just another word for nothing left to lose"
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Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

WAG MORE- - - - - -BARK LESS!
Joined: Dec 2020
Posts: 216
G
'Bolter
It does appear that it only leaks when that flange moves out about
an 1/8inch. Is that a sign bearing is worn?


1958 3100 Apache 327 engine
1958 3100 Apache Panel 1/2 ton 327 engine
Joined: Feb 2016
Posts: 681
7
'Bolter
The yoke/flange should not move in or out, you have another issue along with the leaking seal. Could be as simple as a loose pinion nut but probably has caused other damage.


1957 Chevrolet 5700 LCF 283 SM420 single speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
Joined: Dec 2020
Posts: 216
G
'Bolter
Originally Posted by 78buckshot
The yoke/flange should not move in or out, you have another issue along with the leaking seal. Could be as simple as a loose pinion nut but probably has caused other damage.
Thanks ..thats what I was thinking


1958 3100 Apache 327 engine
1958 3100 Apache Panel 1/2 ton 327 engine
Joined: Oct 2018
Posts: 159
T
'Bolter
Originally Posted by Guitplayer
It does appear that it only leaks when that flange moves out about
an 1/8inch. Is that a sign bearing is worn?
This is not uncommon, and don't be surprised to see quite a bit of metal that came from your pinion and ring gear.

Bearing failure can cause a lot of problems.

Joined: Dec 2020
Posts: 216
G
'Bolter
Can someone ID this rear end for me?


1958 3100 Apache 327 engine
1958 3100 Apache Panel 1/2 ton 327 engine
Joined: Dec 2020
Posts: 216
G
'Bolter
ID rear

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1958 3100 Apache 327 engine
1958 3100 Apache Panel 1/2 ton 327 engine
Joined: Dec 2020
Posts: 216
G
'Bolter
Curious, how much did they quote you to do this? Hard to find people to work on old trucks in my parts.[/quote]

Hour and 1/2 work time


1958 3100 Apache 327 engine
1958 3100 Apache Panel 1/2 ton 327 engine
Joined: Apr 2005
Posts: 1,977
R
'Bolter
It's the standard corporate H033 rear end.
I sent you a PM.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
Joined: Dec 2020
Posts: 216
G
'Bolter
Thanks Fred!!!


1958 3100 Apache 327 engine
1958 3100 Apache Panel 1/2 ton 327 engine
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