Ox Locker in GMT900 with 3.42 gears?

[07CLASSIC]

I wish I knew more about the front diff (or any diff, really) specs. and interchangability, but if there was a G80 that fit in the front case it probably would have already been written about.

Rear diff, 2wd, no G80.

 

[07CLASSIC]

what is your build so far? lift? bigger tires? otherwise there is really no point in trying to fit a controllable locker it likely won't provide any real benefit.
and if you do have a lift and bigger tires 3.42 is probably the minimum to start with.
around here the trails are pretty tight and are jeep trails, trying to fit a suv thru is likely to end with body damage.

Yes, if I'd gone the 4wd route, I'd definitely opt for 3.73's at a minimum. This would be an occasional off-road enhancement for my 2wd. It is what it is for now.

 

[Doubeleive]

Yes, if I'd gone the 4wd route, I'd definitely opt for 3.73's at a minimum. This would be an occasional off-road enhancement for my 2wd. It is what it is for now.

the eaton tru trac should be fine in almost all cases, it's bullet proof that's for sure. (I haven't broke one yet lol) but have broken plenty of g80's
but for a definitive answer you might try reaching out to filthy motorsports I have had there page saved forever for referencing what can be used and what is available
based on the axle/gearing etc they show the OX as a option for "some"

GM 8.5" and 8.6" Axle Parts, Gears, and Upgrades

Filthy Motorsports carries a wide range of parts, gears, and upgrades for the GM 8.5" and GM 8.6" axles including ring and pinion sets, rebuilt kits and bearings, differential covers, upgraded axle shafts, heavy duty u-joints, and more.

www.drivetrainshop.com

 

[07CLASSIC]

the eaton tru trac should be fine in almost all cases, it's bullet proof that's for sure. (I haven't broke on yet lol) but have broken plenty of g80's
but for a definitive answer you might try reaching out to filthy motorsports I have had there page saved forever for referencing what can be used and what is available
based on the axle/gearing etc they show the OX as a option for "some"

GM 8.5" and 8.6" Axle Parts, Gears, and Upgrades

Filthy Motorsports carries a wide range of parts, gears, and upgrades for the GM 8.5" and GM 8.6" axles including ring and pinion sets, rebuilt kits and bearings, differential covers, upgraded axle shafts, heavy duty u-joints, and more.

www.drivetrainshop.com

Hmm. I was pretty sure I'd thoroughly checked out the Eaton Tru Trac, but I was thinking it was an auto-locker, which I didn't want for certain situations. Now that I see it is NOT, and is a unique limited slip, I may need to take another look at it. Thanks.

I'll def check out Filthy Motorsports.

 

[Doubeleive]

Hmm. I was pretty sure I'd thoroughly checked out the Eaton Tru Trac, but I was thinking it was an auto-locker, which I didn't want for certain situations. Now that I see it is NOT, and is a unique limited slip, I may need to take another look at it. Thanks.

I'll def check out Filthy Motorsports.

I referenced them because of the information there page shows and usually video's on various products with a in-depth look at how they work

 

[strutaeng]

I think a selectable locker is better for more aggressive off-road use, like a dedicated (or not) trail rig. Why? Because it locks the rear axles so they spin 1:1.

The LSD have some slip between the axles, which is fine daily driving and some mild off/moderate off-road use.

I forget what the Detroit Truetrac is, but I want to say it's an LSD(?) There's different types of LSD mechanism and that particular one is a "Thorsen"-type LSD. The Thorsen differential require you to apply the brakes momentarily if one wheel is in the air to engage, otherwise if behaves like an open differential until you force one wheel to stop.

Probably doesn't matter OP, but you may want look into the differences.

This video I think covers that: