2 Drivetrain Questions - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 08-31-2007, 06:26 AM Thread Starter
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Question 2 Drivetrain Questions

Recently bought this '03 and have 2 drivetrain questions:

1. Is the Sterling 10.50 rear axle semi- or full-floating?

2. I have a small clunk when I drive. I can't hear it but I feel it. When I start from a complete stop I can feel a small clunk when the truck first starts to roll. It's as if I was dropping it into drive with the engine slightly revved. It is almost imperceptible when I first start driving in the morning (after letting everything warm up for 5 minutes). The more I drive it and the driveline components and fluids heat up it becomes more noticeable. If I take off slowly from a stop I can definitely feel it, but if I do a moderate takeoff I can't feel it as much. The truck has 144K on the odometer so I was wondering if it could just be some slop due to it's age, maybe there's something loose underneath (I've already shaken everything and it seems good) or I have a tranny problem or possibly worn diff gears?

Any thoughts would be appreciated. Thanks.

DA MOOSE
'03 F-250 Lariat FX4 CC/SB (7.3L of course!)

Stuff: Pre-Pump In-Tank Mod (ITPDiesel.com), SS HPX (ITPDiesel.com), 203F Thermostat w/Billet Housing (DieselSite.com)

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Last edited by brian42; 08-31-2007 at 06:33 AM.
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post #2 of 3 Old 08-31-2007, 06:33 AM
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Ok I can not answer your first question because I don't know. Now the 2nd one sounds like it could be U-joints. You would have to inspect them vissually to be for sure.


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2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

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post #3 of 3 Old 09-20-2007, 07:15 AM Thread Starter
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Here's a bump for anyone that was interested:

The Sterling 10.50 rear is full-floating.

I also learned that the Dana 60 front monobeam full-floater didn't start until 2002. Prior to that (back to '99 I think) it was a monobeam Dana 50 (unless you had a DRW 350 then you got the 60).

DA MOOSE
'03 F-250 Lariat FX4 CC/SB (7.3L of course!)

Stuff: Pre-Pump In-Tank Mod (ITPDiesel.com), SS HPX (ITPDiesel.com), 203F Thermostat w/Billet Housing (DieselSite.com)

Fluff: Gaylord's Fiberglass Tonneau, AIH Delete (self), aFe Pro-Guard 7 Magnum Flow OEM Replacement (AutoAnything.com), Harpoon Mod (self)


"A little nonsense now and then, is relished by the wisest men." - Willie Wonka
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