Rear Diff carnage...
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Postmaster
Joined: Jul 2006
Posts: 4,993
Likes: 2
From: Bend, OR
Pulling 27,000 GVW up a 6-7% grade in the tow setting... Open diff up till now. I think that may have been part of the issue, too many one wheel peels hooking up over the years...
Put a new set of 4.30 gears and a true trac in it now... Dont know why I ever waited to do gears, like a whole new truck.
Elder User
Joined: May 2007
Posts: 595
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From: South LA
Nice...ole boy a couple threads down wants to haul a D4 w/ a 3/4 ton SWB, show him these pics and the write-upon how to fix it.
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Thread Starter
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Postmaster
Joined: Jul 2006
Posts: 4,993
Likes: 2
From: Bend, OR
Dont know... Still covered in gear oil, really not sure what caused that in the first place other then a few one wheel peels over the years.
Mountain Pass
Joined: Sep 2004
Posts: 192
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From: Marsing, ID
I'm with you Mike, a couple of those teeth look as if they have been broken for a while and finally completely let go.
Posting Guru
Joined: May 2006
Posts: 2,274
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From: Milroy, PA
One wheel peels, are usually hardest on the spider gears, that the axle shafts slide into. Ive done my share of destroying spider gears. Usually in half ton or lighter driveline. Then once the spider gear splits into parts, they go though the gearset and do their damage. Not saying thats what happened to yours, but usually one wheel peels, lead to spider gear damage. However, in retrospect to that, a truck that makes as much torque as you do, with a sudden "hook up" could be what caused the initial break on that part of the gear set. Then when you were workign them up the hill, it was enough torque applied, pulling your weight, to finally make an event.
