Gear change and Spartan Locker Install

[Bigbeardbiii]

No C-clips on the 9".

Thanks Lonesouth! Does anyone have pictures or videos of a Spartan locker 9" Rear install?

 

[bbow]

I was considering a Aussie for the front and rear but after reading this the Spartan may be the way to go, at least in the rear. Would really like a factory LSD in the rear but I'm stuck with a open carrier.

 

[JohnJohn]

I just installed 4.56 gears and a Spartan in my D44 with stock axles. It did not reuse the side gears from the old open diff.
I searched a bit and found that the Lock Right locker reuses the side gears but my Spartan did not.

 

[lonesouth]

Well, I have made no more progress on this to date, except that a conversation at lunch cost me another $250 to install a spartan in the front as well. ;D

front does not reuse side gears, rear does(will confirm later).

 

[ugly74]

I just installed 4.56 gears and a Spartan in my D44 with stock axles. It did not reuse the side gears from the old open diff.
I searched a bit and found that the Lock Right locker reuses the side gears but my Spartan did not.

In the 44, the side gears are replaced by the locker with the Spartan and the lock right.
It's the 9" that evidently reuses the side gears

 

[JohnJohn]

In the 44, the side gears are replaced by the locker with the Spartan and the lock right.
It's the 9" that evidently reuses the side gears

You are correct. I had no idea. That is kind of nice so you can upgrade axles without needing a new locker for the rear.

 

[ugly74]

You are correct. I had no idea. That is kind of nice so you can upgrade axles without needing a new locker for the rear.

Yeah, neither did I, about the 9", until this thread!

 

[lonesouth]

going to try and put an hour a night into this till it is done.

 

[Bigbeardbiii]

going to try and put an hour a night into this till it is done.

Please take a video or pics!!! ;D

 

[lonesouth]

Got some work done on this last night.



I got my gears and diffs from the classifieds section. They are used, but look like they are in good shape. Last night I was able to tear down the front carrier and pinion, install the spartan, and create some setup bearings for the carrier. I'll make setup bearings for the pinion after I remove the old pinion.


New to me open carrier with 4.11 gears installed

Harbor freight large bearing separator. Used a 3 jaw puller and a long socket to get the bearings off.

Couldn't get the cross-shaft out without removing the ring gear. be sure to mark the gear and carrier so it goes back on the way it came off. May not be necessary, but I figure it couldn't hurt.

The bare carrier, ready for new guts.

Spider gears, free to anyone who wants them.
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Spartan locker. This is beefy. The springs and pins are very stout.

Spartan installed.

Overall, if you are simply installing the locker, and you can get the cross shaft out, this job could probably be done in less than two hours, with the carrier still installed. The hardest part for me was driving out the old cross shaft retaining pin. Didn't have a punch long enough to go through, and ended up using a screwdriver that would fit.

No pics of the process, but to make the setup bearings. Remove bearings with puller/press, be careful not to deform the shims so you can measure to get a good baseline for how thick you need to go back with. Clean off the bearings, place in a vice with the jaws on the inner bearing surface, but not obstructing the opening. Using a mandrel mounted diamond flap disc I purchased from ?gravelmaker?, I sanded down the inside of the bearing surface. Continue to sand a little, and check the fit often. You want the bearing to just slide over the carrier, but not too loose.

 

[Bigbeardbiii]

Lonesouth,
Now, I'm getting confused. Since I am ONLY putting a Spartan in the rear "9" & not replacing anything else, can you send me a response with ONLY the steps I'll need to take & what tools are needed? Thanks a bunch! I REALLY need to try & tackle this within the next week & preferably this weekend, if possible!

 

[Yeller]

For those that are considering this install in the front axle, the pin can usually be pulled out by grinding 1 tooth enough to get the pin by, it is an acceptable solution as long as it is just 1 tooth and the grinding will not have to extend past 1/3 of total tooth length.

 

[lonesouth]

Lonesouth,
Now, I'm getting confused. Since I am ONLY putting a Spartan in the rear "9" & not replacing anything else, can you send me a response with ONLY the steps I'll need to take & what tools are needed? Thanks a bunch! I REALLY need to try & tackle this within the next week & preferably this weekend, if possible!

I probably will not get to the rear for another couple weeks. I will post pics when I do get to it.

 

[Bigbeardbiii]

I probably will not get to the rear for another couple weeks. I will post pics when I do get to it.

Dang, ok. Please let me know as soon as you get to it.
Thanks

 

[lonesouth]

BTW, some bearing sets come with new pinion nuts

 

[lonesouth]

Here's the write up I'm following for the front.

http://www.fourwheeler.com/how-to/t...lf-dana-gear-and-locker-install/photo-01.html

 

[lonesouth]

Pinion bearing preload shim pack

 

[lonesouth]

I did not find an outer pinion oil slinger when I took everything apart. Can I build it back without one?

 

[bbow]

How's the progress going? I just bought a spartan locker for the rear and front. Probably won't start on it until November.


Sent from my iPhone using Tapatalk

 

[lonesouth]

front end is still in pieces. some on the floor, some on the bench, none on the bronco. Haven't been able to work on it since my son was born, 5 months ago. Weather is starting to turn nice again so I have a little more incentive to get it done.