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Solid Axle swap

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Old Jun 17, 2023 | 03:24 PM
  #1  
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Solid Axle swap

Hello I’m doing a axle swap here soon in my 97 f250 HD the axle has 4.10 gears but after I bought it I was told if it didn’t match my rear 4x4 wouldn’t work… my rear axle tag reads what is shown on the photo, any help is appreciated thanks

 

Last edited by Itzkriss; Jun 17, 2023 at 03:27 PM.
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Old Jun 17, 2023 | 05:07 PM
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That tag looks like it is saying 4.10. Can't see the first number on the bottom row for sure.
 
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Old Jun 17, 2023 | 07:51 PM
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Looks like 4.10 as mentioned. Can't imagine it being any other gear with those numbers.
 
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Old Jun 17, 2023 | 07:53 PM
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You can also check the door sticker for the axle code to confirm it is a 4.10
 
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Old Jun 17, 2023 | 08:37 PM
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Turn the pinion and count the revs for tire to turn once.
 
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Old Jun 17, 2023 | 10:10 PM
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Are you also doing reverse shackle kit (RSK) with the solid axle swap? This is a good time to do it. I recollect the SAS needs 350 springs rather than 250 springs to ride decent, so you might as well go all-in with an RSK and SuperDuty springs. On my 350, the RSK and SuperDuty springs were a large improvement in ride and handling from stock solid axle configuration.
 
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Old Jun 18, 2023 | 10:35 AM
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That tag looks to indicate a limited slip 4.10 gear 10.2(5) diff.
 
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