Engine Swap and Dually conversion help / advise

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Sep 13, 2020 | 03:13 PM

Bowmeyea

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From: Montreal Canada

Engine Swap and Dually conversion help / advise

Hi, I just aquired a 2003 F250 SuperDuty 4X4 with 6.0 diesel engine and with issues. Truck has 268000 KM / 161500 Miles. It's running but has no compression on Cylinder 4 and fuel get into oil. Not to waste time and money, I got a used 6.0 with 172000 KM / 106800 Miles from a F-350 2004 that is running fine.

Part One : Engine Swap
In 2 weeks I'll be swapping the engine. If anyone has any advise on other parts I should look into while the engine is out please let me know. Don't feel like pulling the engine again any time soon.

Part Two : Dually Conversion - For Stability not for extra towing weight
Part of the purchase I also got a separate differential with dually wheels and new tires. The metal tag on it is quite rusted and I can barely see some numbers but there is also a white stiker showing 169S. Base on my research the 169S would be a Limited Slip 4.10. The meal tag is only showing the last few numbers. First numbers I can see are perhaps 101C.2.6E13 (Part on bold is clear the rest I'm not sure). Based on the door tag of my truck I have a C1 Differential (3.73 Limited Slip).

Since I have a 4X4 I need 3.73 gear in the dually. Can I swap the differential gears from my current differentials and put them into the dually differential?

Any help will be greatly apprecaited

White Sticker

Metal Tag

Sep 13, 2020 | 04:40 PM

Just Strokin

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From: Tallassee, ALabama

If you brush off the metal tag with a wire brush, someone might be able to read it and give you more info.

Also, if you showed a photo of the rear axle housing cover of both rear ends, one might be able to determine if they are they same size.

Sep 13, 2020 | 05:31 PM

Bowmeyea

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From: Montreal Canada

OK truck is about 400 miles away so I'll brush the tag in 2 weeks when I get there. I'll also take new picture of housing.

But my first priority will be to swap engine so any advise on things to check/upgrade before putting the replacement engine in?

Sep 13, 2020 | 05:38 PM

Bowmeyea

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From: Montreal Canada

Actually I found a picture of the dually diff and I can confirm the truck as a C1 in it but do not have a pic. I only have the door sticker and the VIN.

Sep 13, 2020 | 05:45 PM

Bowmeyea

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From: Montreal Canada

If this help here's a picture of the truck from the previous owner. Disregard the camper as I do not have it. Truck already have dually bed 8' and is in decent condition.