upgrading driveline to f550 - Ford Powerstroke Diesel Forum
 
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post #1 of 3 Old 01-19-2010, 06:33 PM Thread Starter
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upgrading driveline to f550

Hi, ive got a 2wd f250 reg cab longbed with a zf6. What is the difference between my truck and an f550, and can i swap my axles and springs up to the 550 set? Its a hauling truck and i want the dually for stability, and uprated axles so they can handle more than what i haul. Also, are the brakes bigger in the 550s?
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post #2 of 3 Old 01-31-2010, 04:54 PM Thread Starter
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nothing? noone has swapped a rear end and springs to the 550 set?

1992 3000GT VR4
1995 Ram 2500 cummins
1996 Ram 3500 cummins
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post #3 of 3 Old 01-31-2010, 07:32 PM
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550 uses a 135 series diff, with 4.88 gears. Unless you get a light duty 550, which uses a dana 80, in which case you may as well get an f350 and have it over with.

As it stands, swapping the 550 rear diff in, will not make your truck 550 capable, there are other differences in the frame setup as well. You might well find yourself a 2k 550 with a bad engine, and just swap that, you'll be money ahead.

Also, the 550 runs an 8x200 bolt pattern on the wheels and hubs, so unless you upgrade your front hubs, you'll be running two different bolt patterns on your wheels. The 550 uses 19.5s, not 16" wheels, and I don't think the 16's would clear the calipers on a 550, I could be wrong on that. I know a 16, or even a 17, won't clear the caliper guards on my 01 550. Just food for thought.
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