Looking for a limited slip (in good working order of course). Just the differential itself, no case, as pictured below. I imagine someone on here must have a cracked case with a good diff inside. I could use this ASAP, so please let me know!

I have one. What do you want to offer me for the internals?

I don't know really. Ideally cheap! I'm really hoping somebody with no other use for it can help a brother out. If you've got a number in mind, let me know.

If anybody else has an idea of a fair price, feel free to chime in.

I do. It's a v1.

How hard is it to pull out the limited slip?

^ Yeah, we had talked by PM about buying the entire diff, but I never heard back from you. I figure this should be cheaper and easier anyhow.

It's a 5 minute job to remove that:
Remove the 8 bolts around the cover
You may need to use a pry bar to gently work the cover off
Pull out the diff (it's heavier than it looks, but it comes right out

Swiss 150 shipped?

Yeah, that sounds fine. I'll pm you for your Paypal address. Thanks!

You broke a gen 4 rear? How much power are you putting down?

Just out of curiosity, how are you rebuilding the diff? Last I knew there weren't any service parts - bearings, shims, etc - which is why GM always replaces the entire diff assembly, housing and all.

The car is mostly stock. I'm not even 100% sure how it happened, but I somehow botched an axle install and chewed up the inside of the bore where the axle stub seats, along with the axle stub itself. The case, pinion, and ring gear are all perfect.

Long story warning...

I picked up some race axles from Gforce, which had been collecting dust for a while in the garage, so I finally decided to put them in. Axle number one went really smooth on the passenger side. Axle two on the driver side fought me the whole way. I had a really tough time getting it to seat. Banging, cursing, backing out, trying again, etc. I finally got it seated.

Once I got everything back together, the car drove really nice. The next day at work, I saw some spots in my parking place, so I checked it out, and the axle seal was leaking. I was using seal protectors during the install, but the repeated attempts getting it to seat were just too much.

I pulled everything back apart and replaced the seal (everything looked pretty normal at the time) and it went even back together with little effort. After driving on it for about 10 miles, the diff locked up. It would go straight, but the wheels wouldn’t turn at different speeds.

I nursed it home a few miles, which in hindsight I probably shouldn’t have. When I pulled everything apart, the axle stub was thrashed along with the bore where the stub seats in the differential.





My best guess is that I gouged the bore, or chipped a spline, then the debris snowballed into the carnage above. As I said above, I have no idea.

Sooo, Chris at Gforce was nice enough to send me a new stub for the race axle, and I purchased this diff from the good old LS1tech classifieds:

https://ls1tech.com/forums/cadillac-...f-s-trade.html

"I dont know what typical cts-v whine is that everyone talks about because mine is the only I have ever driven but it does have some whine."

That diff is currently installed in my car, and it sounds like I have the siren from a firetruck in the back of my car. It's 5X worse than the Gen III I had replaced under warranty for whine. Albeit functional for the time being, I can't stand it. This thing is garbage.

So, the plan is to get a new diff to replace the one above, swap over my old ring gear to the new diff, and use that with the old pinion in the old case. Wish me luck.

Like I mentioned above, I'm just swapping the diff with the old pinion, ring gear, and case. I've heard of folks doing that with the non-LSD CTS diffs, so I think I'll be OK. I know there are some shims underneath the bearing race in each side of the case, hopefully I'll stay within spec.