Changing rear axle
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From: In my work truck.LOL
Changing rear axle
Ok, so I have a 2000 F-250SD 4x4 with the 7.3 powerstroke. Last weekend the rear axle locked up and Im not sure what all is torn up. I have a 2004 donor truck but from what Ive looked at it looks like the 04 wont interchange. Does anyone know why? My 00 has 355K miles and I dont want to spend the money to have the axle on it rebuilt if I can help it. My donor truck only has 67K. The only reason I have it is because it was a rollover and I bought it cheap figuring one day the engine and trans in my 00 will need to be replaced. I know the 04 engine isnt exactly the same but if I change the complete assembly with the trans, computer, and wiring harness Im sure it will work. Please let me know about the axle. If I dont get any answer I'll most likely try swapping it this weekend. Thanks and be blessed!
Nick
Nick
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From: In my work truck.LOL
Both trucks are single rear wheel. From what I can tell my 00 has a 3:73 gear ratio and the 04 is 4:10. I know its a ton of work to switch the powertrain when it comes to that point but I bought the 04 for $1800 so to me its well worth the time should my powerstrake ever kick the bucket. I've been sitting on the parts truck for two years figuring when my 00 reach 250K the engine would surely mess up soon. Now Im not so sure..lol. This has by far been the best truck I have ever had. Thanks for the input guys.
Sit. Stay.
Joined: Oct 2001
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From: Washington State
If your 04 is a PSD then it should 3.73 right? 4.10's were not an option on SRW PSD trucks.
What is it about it that you think it won't interchange?
Can you post pics of both rear axles & driveshafts with shots of the front where it comes off the tranny and where the driveshaft & axle meet?
What is it about it that you think it won't interchange?
Can you post pics of both rear axles & driveshafts with shots of the front where it comes off the tranny and where the driveshaft & axle meet?
Cargo Master
Joined: Dec 2007
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From: Carstairs Alberta
if you put a 4.1 in the rear and you have 3.73 in the front you will have a really big problem when using 4x4. kind of surprised no one else caught that. you could possibly change front as well, they only got front coils in 05 i think
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I didnt think about the different ratios in the front and rear causing a problem either to be completely honest. Then again, I bet I havent had my truck engaged in 4WD 10 times since Ive had it. I only bought a 4X4 because it is kinda required to have my repo lift on it. Ive had a 2WD and there isnt enough counter weight in the front when I tow something like an Expedition. It caused me to have almost no steering and just slightly more braking. I'll try to post some pics of both trucks, axles, and yokes. The reason I wonder about the swap being exact is because when I look up the rear end on a salvage website they claim only the 99-00 are a direct interchange. Thats why Im wondering what is different about them. I put the 00 in the garage this morning and am going out there shortly to start pulling the rear end out of it. 'll let you know how it goes. Thanks again.
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I know that there is a difference in the way the brake calipers are mounted. I believe if you look at one, the caliper is mounted in front of the axle, and on the other, the caliper is mounted in the rear of the axle. I forget which one is which. I have made the axle swap work in the past, since things are essentially the same, but what needs to happen is you will have to swap everything right up to the brake line on the frame. Don't try and cheat and use the calipers that are already on your truck because the bracketry and bleed screws will be all jiggered up.
Edit - Oh yeah, the mounting flange on the Pinion where the driveshaft bolts to is different as well if I remember, though this is easily swaped. You just have to remember to check the preload BEFORE you take it all apart so that you can put it back together. If your axle is toasted though, just besure not to get to carried away tightening it up and you should be fine.
Edit - Oh yeah, the mounting flange on the Pinion where the driveshaft bolts to is different as well if I remember, though this is easily swaped. You just have to remember to check the preload BEFORE you take it all apart so that you can put it back together. If your axle is toasted though, just besure not to get to carried away tightening it up and you should be fine.
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Thanks mikers. The info helps. I looked up the part numbers on the autozone website and they both call for the same pads, rotors, and calipers so Im hoping there wont be tooooo much of an issue. I ran upon a very nice truck that I believe to be a great deal today and Im planning on picking it up Monday and taking it to my mechanic to have it checked out bumper to bumper. If it turns out to be ok then Im seriously considering changing the lift from my 00 to it and fixing my 00 to run around town and what not. My mechanic is coming by tomorrow to finish up the axle swap hopefully. I'll let you all know how it goes as well as what happens with the new truck on Monday. Im gonna post a new thread about the possible new truck.
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Well we got the 04 axle in the 00 truck with only minor issues. The only thing we had the change to make it fit was the brake lines from the frame. Other than that it was relatively simple. The biggest pain was bleeding the brakes after the swap. The good thing is my truck is once again rolling as it should. Oh yeah, and I am buying another truck tomorrow. Thanks for all the tips and advice.