Need some help identifying a diff

[Trfsrfr]

I just purchased what I hope is the deal of day for me.
See, recently I constructed a flatbed for my 93 3.0L Ranger, and as usual I overbuilt it. It's way to heavy. With it's 3.43 gears and the 235/75/15's I have on it, (195/70/14 stock size) it barely moves.
So today I purchased a used diff, for $50.00.
It needs wheel cylinders and new shoes, but I am not quite sure what I have;
The kid I bought it from advertised it as an 8.8...
So here are the specs;
10 cover bolts,
Tag (which I am assuming is correct because I counted the rotations) reads 313B 4L10A759E11. So 4:10 gears, which is why I purchased it.
It is 56-1/2" WMS to WMS,
Its drums measure approx 10-1/2" O.D., and the shoes are 2-1/2" wide,
The outer-to-outer edge of the shock mounts is 29"
The center-to-center of spring perch mounts is approx 39"
The spring perch's are located on top of the axle tube,
It has an ABS sensor,
The tube diameter is 2.95 at the diff housing, but then tapers to approx 2.80 at the spring perch.

I give this info because I need to know;
A - Will it bolt directly in?, and;
B - what shoes and wheel cylinders do I buy for it?

Any thoughts are much appreciated.
Thanks!

 

[Captain Ledd]

Axles from a Ranger will fit Axles from a Ranger. There's some (very minor) width differences, but they will all physically bolt in. 7.5", 8.8" both. There are some pinion flange bolt hole differences though, older axles having a smaller bolt pattern.

http://www.therangerstation.com/tech_library/Ford-7_5-axle.shtml

http://www.therangerstation.com/tech_library/Ford-8_8-axle.shtml

B. order brake parts for the 10" drum. These also work for 10 Explorer drums. drum parts are pretty much universal according to drum diameter.

The "4L10" part of the tag is indeed 4.10 gears, and a limited slip taboot!

The width sounds right for a Ranger axle, Explorer 8.8's were wider.

 

[Mac]

That is a 7.5 from what the tag says and the 3.45 gearing, 8.8 came in 3.55. It's the bottom numbers that show it to be the 7.5 : 759E11. The shape of the rear cover is a dead give away as mentioned above.
Dave

 

[kimcrwbr1]

The only way to know for sure is to count the gears for the ring and pinion. If it is a tracloc LS it probably needs new clutches, depending on your skill level you want to go through it complete before installing it in your truck.

 

[85_Ranger4x4]

The only way to know for sure is to count the gears for the ring and pinion.

When I regeared my F-150 I left the stock tag on... just so if something happens to my truck I know somebody will be thinking of me after they get home from the junkyard.

 

[Trfsrfr]

Need some more help/advice

Hey thanks for the responses thus far.
I do have a couple more questions though;

1 - when I called Autozone today the kid needed to know year and model, otherwise he couldn't look it up. I didn't know what to tell him to help the search for the cylinders, shoes, and pinion seal. As for the shoes he told me to measure them from the top lip to the bottom lip, and just in my initial measurement while they are still on the axle, they measured around 9 inches...

2 - I pulled the diff cover today and noticed some corrosion on the ring gear, actually took a wire brush and a scraper to remove some of it. It looks like it had been sitting for awhile as the corrosion has a 'level' to it. In other words it only has corrosion on one side of the gear.
I've heard that some corrosion really wont make a lot of problems...but I have attached a couple pics.
I am not going to spend money on brakes hsoes, cylinders, etc if I need to first buy a new ring and pinion.

Thoughts?
Thanks-

 

[Captain Ledd]

That's definitely some deep pits on there.

Need some pics of the teeth themselves if you can, preferably the drive side (the straighter looking part of the tooth). Use the worst one to post a pic of. Unless the wear surface is compromised, everything else is cosmetic. You should be able to see the wear area on the good teeth pretty well.

Sounds like 9" brakes. If you have 10" brakes of your original axle, swap them over, it's worth it.

As for parts, just give him your make and model year, 9" brakes are all the same, and 10" brakes are all the same.

Pinion seal listed for the 7.5" axle. In fact, I think they use the same? (I could be wrong)

 

[kimcrwbr1]

The spider gears look to be in good shape as well as the clutches but if you have to change the ring and pinion you may as well put new clutches in while it is apart. It would be a shame to put all that work and money for a open carrier. The only way to test the LS is under a load. put two jack stands under the rear axle and then shove a chunk of firewood under one of the tires while in gear give it gas it should drive off of the stands.

 

[85_Ranger4x4]

Water makes linings come off... I would replace the clutch packs if you want to keep the limited slip working.

And I bet that cheesy little vent thing is the cause of a lot of your problems...