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Old June 7th, 2011, 08:24 PM   #1
deathbypsi
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Default 8.8 lockrite install issues

Im building a 97 Explorer 8.8 for my Bronco2 right now. About 2-3 years ago I bought a "new" 31 spline Lockrite for a 8.8 from somebody off this site. Well today when I was installing it I found that the outer gears that go into the open carrier first do not fit tight inside the hole in the carrier where the axles slide thru. The collar that goes inside the carrier with the shim on it is much smaller than the hole in the carrier. and it looks like the gap between the two halves of the locker is way to big. The pins will not catch both sides.

Either I was sold the wrong locker or are there different 8.8 open carriers?

I have the box the locker came in but there is no part number on it anywhere.


Is there a way to take the numbers and letters engraved into each part of the locker to see what one I have for sure??

Im pissed right now cuz I wanted this on the road this weekend...
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Old June 8th, 2011, 11:51 AM   #2
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Originally Posted by deathbypsi View Post
Im building a 97 Explorer 8.8 for my Bronco2 right now. About 2-3 years ago I bought a "new" 31 spline Lockrite for a 8.8 from somebody off this site. Well today when I was installing it I found that the outer gears that go into the open carrier first do not fit tight inside the hole in the carrier where the axles slide thru. The collar that goes inside the carrier with the shim on it is much smaller than the hole in the carrier. and it looks like the gap between the two halves of the locker is way to big. The pins will not catch both sides.

Either I was sold the wrong locker or are there different 8.8 open carriers?

I have the box the locker came in but there is no part number on it anywhere.


Is there a way to take the numbers and letters engraved into each part of the locker to see what one I have for sure??

Im pissed right now cuz I wanted this on the road this weekend...
You're not using a limited slip carrier, are you?
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Old June 8th, 2011, 01:15 PM   #3
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No its the stock open carrier...

..however I just seen they sell a locker for a LSD carrier.I will check this locker with the LSD I have under the bench later.
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Old June 8th, 2011, 03:53 PM   #4
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Talked to Richmond tech today and got it figured out. Turns out it is a 31spline 8.8 Lockrite...but for a open diff with a 3/4 cross pin. The Explorer diffs use a 7/8 pin. So it looks like I just need to find the other open carrier.
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Old June 8th, 2011, 04:04 PM   #5
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Originally Posted by deathbypsi View Post
Talked to Richmond tech today and got it figured out. Turns out it is a 31spline 8.8 Lockrite...but for a open diff with a 3/4 cross pin. The Explorer diffs use a 7/8 pin. So it looks like I just need to find the other open carrier.
Would you know what veh. 8.8's have a 3/4" cross pin?
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Old June 8th, 2011, 05:10 PM   #6
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Talked to Richmond tech today and got it figured out. Turns out it is a 31spline 8.8 Lockrite...but for a open diff with a 3/4 cross pin. The Explorer diffs use a 7/8 pin. So it looks like I just need to find the other open carrier.
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Would you know what veh. 8.8's have a 3/4" cross pin?
1986 and older were 3/4"

1987 and newer are 7/8"
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Old June 8th, 2011, 07:04 PM   #7
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Have any old ones layin around the shop?
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Old June 9th, 2011, 12:18 PM   #8
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Have any old ones layin around the shop?
I think everything I have is LSD.
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