swapping rear ends
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I've only seen a hole blown through a rear differential once and that was on a 99 AWD Chevy Astro, not sure what had happened but we ended up replacing the whole thing with a used one from a salvage yard. My dad ended up paying just a bit over $200. I would recommend replacing the wheel bearings, fluids and the rear dif gasket. Make sure it also has the proper gear ratio as well. If your original gears were not damaged I would swap them over to the new/used dif.
If the brake lines look good on the replacement then no need replacing them. But better to be safe than sorry.
Main reason why I am suggesting replacing the wheel bearings now is so you know when they were done. They can go out at any random time. Mine went out after 230K miles and never expected it to happen. I've heard them going at 150K and heard them never going out even with over 300K. 75w140 I believe is the recommended gear lube for the rear dif, full synthetic.
Hope this helps.
If the brake lines look good on the replacement then no need replacing them. But better to be safe than sorry.
Main reason why I am suggesting replacing the wheel bearings now is so you know when they were done. They can go out at any random time. Mine went out after 230K miles and never expected it to happen. I've heard them going at 150K and heard them never going out even with over 300K. 75w140 I believe is the recommended gear lube for the rear dif, full synthetic.
Hope this helps.
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If they are the same axle, yes.
These trucks had either a Ford 8.8 or Ford 9.75 axle. Also check if the replacement has the same type of brakes (drum or disk) to make the swap easier, as well as the same gear ratio (yes it can be changed, but easier if it is already the same as what is coming out).
With the 5.4 the 9.75 is the better axle (and I think 5.4 option gives you the 9.75 axle).
These trucks had either a Ford 8.8 or Ford 9.75 axle. Also check if the replacement has the same type of brakes (drum or disk) to make the swap easier, as well as the same gear ratio (yes it can be changed, but easier if it is already the same as what is coming out).
With the 5.4 the 9.75 is the better axle (and I think 5.4 option gives you the 9.75 axle).
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If they are the same axle, yes.
These trucks had either a Ford 8.8 or Ford 9.75 axle. Also check if the replacement has the same type of brakes (drum or disk) to make the swap easier, as well as the same gear ratio (yes it can be changed, but easier if it is already the same as what is coming out).
With the 5.4 the 9.75 is the better axle (and I think 5.4 option gives you the 9.75 axle).
These trucks had either a Ford 8.8 or Ford 9.75 axle. Also check if the replacement has the same type of brakes (drum or disk) to make the swap easier, as well as the same gear ratio (yes it can be changed, but easier if it is already the same as what is coming out).
With the 5.4 the 9.75 is the better axle (and I think 5.4 option gives you the 9.75 axle).