Banging from rear when turning.
Fleet Mechanic
Joined: Feb 2007
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From: Boston, MA
I don't know that answer. For me I know could swap the whole rearend myself,however I would not know how to repair the differential itself. Whatever you do think thru what you gears you want to put there, maybe a LS, locker?
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Junior User
Joined: Sep 2008
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I was going to look for a direct replacement, but I'm open for suggestions. The current rear is a 7.5 L/S with 3.73 ratio (axle code F6 on the door sticker).
What's the benefits to going to a rear that you're thinking? Would I have to redo the brakes again or would the brand new 10" pads and drums work on that rear?
What's the benefits to going to a rear that you're thinking? Would I have to redo the brakes again or would the brand new 10" pads and drums work on that rear?
Last edited by nd925; May 14, 2010 at 09:20 AM. Reason: typo
Fleet Mechanic
Joined: Feb 2007
Posts: 1,716
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From: Boston, MA
You could start a new thread about the Rearend. I don't know a lot aboutthe subject, but the little I do know says your existing RE is fine. You have the LS which is great especialy for a 2WD
Elder User
Joined: Feb 2006
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From: SE Michigan
Unless you know some one that's good with rear axles it would be easier/cheaper to buy one used and just swap the whole thing out. But finding one just like yours may not be so easy. Generally, a limited slip in a 7.5 axle is more rare than in an 8.8. Unless your part of the country got more than other parts. Start looking around and comparing the rebuild and swap to see which might be better for your budget and time. If you have newer, larger brakes on the one that just broke you could swap all that over to the other rear axle. It's just a bolt on.
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Junior User
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Honestly I don't care what rear goes in just as long as it works. I'm glad that I can swap all the new brakes parts over to the other axle. With 193k on it I don't want to spend a lot fixing it either. I'm in the process of looking for something newer. I got my eye on an 04 Ranger Edge. Just got to get this one fixed first.
Fleet Mechanic
Joined: Feb 2007
Posts: 1,716
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From: Boston, MA
Unless you know some one that's good with rear axles it would be easier/cheaper to buy one used and just swap the whole thing out. But finding one just like yours may not be so easy. Generally, a limited slip in a 7.5 axle is more rare than in an 8.8. Unless your part of the country got more than other parts. Start looking around and comparing the rebuild and swap to see which might be better for your budget and time. If you have newer, larger brakes on the one that just broke you could swap all that over to the other rear axle. It's just a bolt on.
Cargo Master
Joined: May 2001
Posts: 3,208
Likes: 13
Find a used one they are pretty cheap. Rears tend not to go out from daily driving. You will break one occasionally from spinning on ice or mud or doing tire smoke outs. Have the guy pull the cover and see exactly what broke sometimes it not to serious and can be fixed on the cheap with used parts. Sill think you lost a spider gear if it didn't take out the ring and pinion gear the last set I got about a month ago from the salvage cost me $15.00
Elder User
Joined: Feb 2006
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From: SE Michigan
Powersmoked, what I was originally referring to was that the brakes would be a bolt in swap from one axle to the other. I believe he mentioned he has new 10" drums & shoes. He can swap all of his new brake parts and the brake backing plates over to the replacement axle if it has 9" drums. And, the swap over of the rear axle is also a bolt in type of swap, as long as it's an axle from a Ranger. So, yes, it's all just a bolt in process along with bleeding the brakes. Also make sure the drive shaft mount flange on the rear axle matches the one in the truck. He may also need to find a source for the axle u-bolts in case one breaks when taking it apart. A shop that sells and installs leaf springs should have the u-bolts or they can get them. I also believe you're right about the non limited slip axle being the more common type to be found. That type would be less expensive too.
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Junior User
Joined: Sep 2008
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Hey guys, my buddy pulled it apart and said that it's the spider gear/s. He's ordering the parts tomorrow and going to change them out. I priced a rear from the junk yard here and he wants $400 for it. I thought that was a little steep. I found a rebuild kit for under $200. Wouldn't it be better rebuilding it so I would have all new parts in there? Thanks again for everyone's input. I'll let you know how it turned out.
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Junior User
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Oh man this is turning into a nightmare. A word of advise, don't let your friend do side work on your truck. He's a mechanic by day and does side work at night. Here it is almost a week and I still don't have my truck back. He is suppose to order or get the parts today. He called me yesterday and said that I gave him the wrong info about the rear. He says it's a posi-rear. I said its a limited slip, at least that's what the axle code tells me on the door (F6). Did they even make these trucks with a posi-rear? Let me make sure I understand the difference between posi and limited. Posi is both wheels turn together. Limited slip is one wheel turning unless it loses traction then the other kicks in? I wish I would have written down the numbers from the tag that is on the rear diff cover. Any way to tell from the picture that I posted? Thanks for letting me vent.
Laughing Gas
Joined: Oct 2007
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From: The 'Loops
posi, limited slip, traction loc , are pretty much brand names for the same basic thing. Ford has a "traction loc" which is a limited slip type rear. A "positraction" is a Chevrolet brand name for a limited slip differential. A fair explanation is here Limited slip differential - Wikipedia, the free encyclopedia.
Fleet Mechanic
Joined: Feb 2007
Posts: 1,716
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From: Boston, MA
Oh man this is turning into a nightmare. A word of advise, don't let your friend do side work on your truck. He's a mechanic by day and does side work at night. Here it is almost a week and I still don't have my truck back. He is suppose to order or get the parts today. He called me yesterday and said that I gave him the wrong info about the rear. He says it's a posi-rear. I said its a limited slip, at least that's what the axle code tells me on the door (F6). Did they even make these trucks with a posi-rear? Let me make sure I understand the difference between posi and limited. Posi is both wheels turn together. Limited slip is one wheel turning unless it loses traction then the other kicks in? I wish I would have written down the numbers from the tag that is on the rear diff cover. Any way to tell from the picture that I posted? Thanks for letting me vent.
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Junior User
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I'm beginning to feel the same way. I really think he just doesn't have the time to do it but doesn't want to lose the work so he's trying to stall until he has the time to do it. If it's not done by the weekend then I'm going to have it picked up and brought some where else. I don't want to hurt his feelings but I need my truck.
Thanks guys for all your help. I'll let you know what happens.
R031Kona: I would have thought that he looked at the tag on the rear already. It seems to me like one of the 1st things I would do if I was going to work on it.
Thanks guys for all your help. I'll let you know what happens.
R031Kona: I would have thought that he looked at the tag on the rear already. It seems to me like one of the 1st things I would do if I was going to work on it.
Last edited by nd925; May 20, 2010 at 11:18 AM. Reason: Typo