Rear end help - Ford Powerstroke Diesel Forum
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post #1 of 24 Old 05-31-2019, 09:03 PM Thread Starter
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Rear end help

Did Ford make a limited slip 3.73 for our 99-03 trucks? I'd love to start building up my axles but I'd like to swap out my unlimited slip 3.73 rear end for a limited slip. I'm not against welding my diff but would rather stay away and use it as a LAST CHANCE resort. I've heard of lockers but I'm not very educated on the matter or if they are for only hubs or if they actually lock the diff. I wanna go with Chromoly axle shafts and mag hytec diff covers for starters. Thanks, Jake.

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post #2 of 24 Old 05-31-2019, 09:14 PM
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Yep - have one in my '01!


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post #3 of 24 Old 05-31-2019, 09:16 PM Thread Starter
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How do you like it? Are they sorta rare?
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post #4 of 24 Old 05-31-2019, 09:40 PM
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I like it. It works well. I don't think they are rare, but not that sure. Maybe other members would know -or- Google could help.


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post #5 of 24 Old 05-31-2019, 10:17 PM
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My 01 has it to. Works good also. My truck is the 01 crew cab long bed 4x4 lariat. I don't know if that made a difference or not.

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post #6 of 24 Old 06-01-2019, 03:03 AM
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Yes they made one but it wasn't that good. Get a Truetrac if you want a good limited slip. Or for ultimate strength and reliability get a Detroit locker like I did, the Yukon Grizzly locker is good also.
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post #7 of 24 Old 06-01-2019, 03:09 AM
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Also unless your building a high HP competition truck, the stock axle shafts are fine. Axle shaft failure is rare on a Ford 10.25/10.50 unless it's under extreme abuse and high HP. That money would be better spent on a set of traction bars.
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post #8 of 24 Old 06-01-2019, 07:06 AM Thread Starter
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Do you happen to have the part number for the Detroit locker so I could check it out?
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post #9 of 24 Old 06-01-2019, 08:38 AM
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What does welding a limited slip do ? My 01 has the 4.10 limited in it I believe. I have considered traction bars but never really liked into them, mines 2wd ....

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post #10 of 24 Old 06-01-2019, 12:02 PM
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Quote:
Originally Posted by Jake Herman View Post
Do you happen to have the part number for the Detroit locker so I could check it out?
Detroit locker 225SL56A
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