GM LSD Underway

Post by **Grayson** » Wed May 28, 2008 4:22 pm

I haven't performed this swap before, but I'll throw it out in case it ends up working. I've heard that if you install the bearings on the diff after it's installed in the case, you don't have to grind...or at least not grind as much. If this is true, it would certainly be worth the inconvenience to avoid the grinding.

BeefFajitas · Post by **BeefFajitas** » Wed May 28, 2008 4:32 pm

How do you install bearings on the carrier when it's in the case? Those bearings are pressed on. Not only that, but the carrier should be a tight fit to the case. Maybe you're talking about the race that unbolts?

DSPXR4ti · Post by **DSPXR4ti** » Fri May 30, 2008 12:19 am

Hey MerkxrTurbo,

Have you put it the case yet? I'm going to be surprised if you can get in the case and this is base on how mine went in but I could be wrong.

BeefFajitas,

By the way you can press in the bearings after you install the LSD, it was the only way it was going to fit, I just didn't want the mod the case to have it fit.

Ben

BeefFajitas · Post by **BeefFajitas** » Fri May 30, 2008 10:26 am

Interesting. I was just thinking back to when I sent up the 8.8.

MerkXRTurbo · Post by **MerkXRTurbo** » Fri May 30, 2008 11:58 am

Hey, yes I have it in the case. It is just sitting in there and not riding on the bearings or anything because I will need spacers to make the carrier the correct length.

I'm going to do a bit more work on it today. I will double check to make sure that the pinion gear does not rub on the carrier, as I've heard that can be a problem with some. If that checks out, I'm going to drop it off to my machinist for at least the axle turning portion of the work.

DSPXR4ti · Post by **DSPXR4ti** » Fri May 30, 2008 12:02 pm

MerkXRTurbo wrote:Hey, yes I have it in the case. It is just sitting in there and not riding on the bearings or anything because I will need spacers to make the carrier the correct length.

I'm going to do a bit more work on it today. I will double check to make sure that the pinion gear does not rub on the carrier, as I've heard that can be a problem with some. If that checks out, I'm going to drop it off to my machinist for at least the axle turning portion of the work.

Axle turning? why are going have to do that?

Ben

Post by **DPDISXR4Ti** » Fri May 30, 2008 12:02 pm

Have you compared the spline pattern yet Luke? We know they're both 26-count, that's not the concern - it's the angle.

DSPXR4ti · Post by **DSPXR4ti** » Fri May 30, 2008 12:13 pm

I know, I know, you have a different set up than I but with the Eaton lsd you didn't have to do that.
I know, I know, not everyone has the cash to get an Eaton I hope this works for you, man is that a hunk of steel.

Ben

MerkXRTurbo · Post by **MerkXRTurbo** » Fri May 30, 2008 12:26 pm

DPDISXR4Ti wrote:Have you compared the spline pattern yet Luke? We know they're both 26-count, that's not the concern - it's the angle.

Yes I have. With the passenger side bearing race removed (as pictured in my final photo in the opening post of the thread) I have direct access to the place that the splined portion plugs into. Like I stated earlier in response to John Vandlandingham's concern, was that the fit was every bit as good as factory... in fact there is no possible way that it could be better! I will attempt to get a pic today.

MerkXRTurbo · Post by **MerkXRTurbo** » Fri May 30, 2008 5:39 pm

Here's a pic. It's blurry as hell, but you can kinda see how perfect the splines are.

BeefFajitas · Post by **BeefFajitas** » Fri May 30, 2008 6:07 pm

Or not. Use the Macro function. It's the flower looking button.

MerkXRTurbo · Post by **MerkXRTurbo** » Fri May 30, 2008 7:31 pm

I did, but I think I may have moved the camara. You know how it is to work on something and take pictures at the same time.

Sorry, can't take another pic... everything has been dropped off at my machinist. I presented the problems, and he said he'll call me when the axles are turned down and the appropriate spacers are fabbed up.

Tumbler · Post by **Tumbler** » Fri May 30, 2008 9:28 pm

MerkXRTurbo wrote:I did, but I think I may have moved the camara. You know how it is to work on something and take pictures at the same time.

Sorry, can't take another pic... everything has been dropped off at my machinist. I presented the problems, and he said he'll call me when the axles are turned down and the appropriate spacers are fabbed up.

This thread is so full of win

MerkXRTurbo · Post by **MerkXRTurbo** » Fri May 30, 2008 11:41 pm

BRMXR4ti wrote: Axle turning? why are going have to do that?

Read from the beginning of the thread... I've already explained this.

MerkXRTurbo · Post by **MerkXRTurbo** » Wed Jun 04, 2008 12:30 am

My machinest wanted me to double check to make sure that none of the pieces within the differential are heat treated. They wouldn't be in my wildest imagination, due to the fact that they're all bathed in gear oil and shouldn't see more heat than any kind of metal can withstand, but just to comply with his request I thought I would get a second opinion. Anybody???