Author Topic: My differential is grinding (Read 8744 times)

Yohanes · « **on:** June 21, 2011, 09:33:17 PM »

:Hello GMC wants 2500 to fix my differential. Suggestions please.

1LILNDN · « **Reply #1 on:** June 21, 2011, 09:43:10 PM »

Get a Quote from a service shop or another Dealer

DeepBlueGXP · « **Reply #2 on:** June 21, 2011, 09:49:30 PM »

I got your PM, I don't have a resource for the rear diff, perhaps contact DDM when they get back from Nationals or find a rear end from a junk yard Sol/Sky

Aspenrose · « **Reply #3 on:** June 21, 2011, 09:56:13 PM »

source one has new diffs for 1000, I paid 2700 to have mine replaced with a new one two summers back

DaveOC · « **Reply #4 on:** June 21, 2011, 09:56:29 PM »

$2500 is a bit low for a GM dealer. I would guess you can get it done for a lot less if you use an independent shop, and they use used parts.

SKY888 · « **Reply #5 on:** June 21, 2011, 09:58:26 PM »

I might be upgrading..............

I'll let you know if I sell mine.

MomsSol · « **Reply #6 on:** June 21, 2011, 09:59:41 PM »

Couple of questions, 1. was the recall for the pinion seal ever done on your car? 2. have you ever had any other repairs done to the differential?

If you answered yes to both questions then you should call customer service and see a pif they would consider extending the differential warranty to cover this for you. On my 06 I had multiple repairs and they did an extended for me but I don't recall for how long. They know that diff is bad..that's why they replaced them in the 07s.

Yohanes · « **Reply #7 on:** June 21, 2011, 10:01:39 PM »

Quote from: SKY888 on June 21, 2011, 09:58:26 PM

I might be upgrading..............

I'll let you know if I sell mine.

sounds good.

SKY888 · « **Reply #8 on:** June 21, 2011, 10:02:51 PM »

oh damn, I just saw that you have a 2.4

I have a LNF

not sure if they're compatible

Yohanes · « **Reply #9 on:** June 21, 2011, 10:07:52 PM »

Yea i read about the diff issues and the recalls. They would not extend my warranty, i brought it used. they suggested i trade it back in. They offered to do a straight up trade with me putting down $3000 on another vehicle, ok! I may as well fix it!

Yohanes · « **Reply #10 on:** June 21, 2011, 10:08:53 PM »

Quote from: MomsSol on June 21, 2011, 09:59:41 PM

Couple of questions, 1. was the recall for the pinion seal ever done on your car? 2. have you ever had any other repairs done to the differential?

If you answered yes to both questions then you should call customer service and see a pif they would consider extending the differential warranty to cover this for you. On my 06 I had multiple repairs and they did an extended for me but I don't recall for how long. They know that diff is bad..that's why they replaced them in the 07s.

I dont know brought it a month ago

ophidia31 · « **Reply #11 on:** June 21, 2011, 10:10:06 PM »

Quote from: Aspenrose on June 21, 2011, 09:56:13 PM

source one has new diffs for 1000

this.

MomsSol · « **Reply #12 on:** June 21, 2011, 11:19:34 PM »

Quote from: Yohanes on June 21, 2011, 10:08:53 PM

I dont know brought it a month ago

Oh, probably not then..sorry.

Arabas · « **Reply #13 on:** June 22, 2011, 02:56:37 AM »

Quote from: SKY888 on June 21, 2011, 10:02:51 PM

oh damn, I just saw that you have a 2.4

I have a LNF

not sure if they're compatible

they are compatible (the whole carrier), but yours have the torque arm on it, while 06 don't have the torque arm on it. this could be a problem, even though i don;t think so..

Kelu · « **Reply #14 on:** June 22, 2011, 04:47:56 AM »

Get a Quaiffe diff - end of story cause of lifetime warranty

SKY888 · « **Reply #15 on:** June 22, 2011, 06:11:44 AM »

Quote from: Arabas on June 22, 2011, 02:56:37 AM

they are compatible (the whole carrier), but yours have the torque arm on it, while 06 don't have the torque arm on it. this could be a problem, even though i don;t think so..

nice to know!

could somebody confirm about the torque arm, if could be a problem if added to the 06?

Arabas · « **Reply #16 on:** June 22, 2011, 06:48:34 AM »

Quote from: SKY888 on June 22, 2011, 06:11:44 AM

nice to know!

could somebody confirm about the torque arm, if could be a problem if added to the 06?

just to validate my answer, you can see who made that clear to me

"Hello,

If you are swapping the entire thing, it will be a plug and play. Just remember that your speedometer will be off. Also make sure you get a differential from an 2008 or newer 2.4L as there are 3 styles of differentials found in the 2.4L and you need to make sure that you get one with the torque arm on it.

Thanks,
Dave"

SKY888 · « **Reply #17 on:** June 22, 2011, 07:24:25 AM »

thanks! Arabas!

I can sell my differential to the OP then!

POS VETT · « **Reply #18 on:** June 22, 2011, 08:34:44 AM »

I tend to agree with Kelu. If I was going to spend that much money, might as well rebuild/upgrade the current one; granted that the housing is undamaged. Get a new set of R&P and Quaiffe differential and take them along with the housing to a transmission shop. I assume the charge is a couple hundreds to swap them out or if you are mechanically-inclined then swap them yourself; have the shop set the preload, play, and mesh pattern.

Uranium-238 · « **Reply #19 on:** June 22, 2011, 08:35:34 AM »

Quote from: Kelu on June 22, 2011, 04:47:56 AM

Get a Quaiffe diff - end of story cause of lifetime warranty

Kelu's right. Get a Quaiffe and be done with dealing with the qirks of the stock diff for ever.

When the diff dies on my car, or needs to be upgraded to handle more power, this will be the only solution I consider.

Kelu · « **Reply #20 on:** June 22, 2011, 08:41:19 AM »

With a Quaife LSD I bet you will destroy everything else around it but not that diff and for sure will outrun the life of the car.

Critterman · « **Reply #21 on:** June 22, 2011, 08:48:12 AM »

I don't think Quaiffe makes a diff for our car anymore. I would contact Dave at
DDMWorks (at the nationals at the moment) he might have a source or Wade at Wade's Garage in WV. Wade replaces them when he does a V8 swap and normally has some spare parts.

The dealer should be able to do a VIN check for you to see if the recall was done.

spicy3480 · « **Reply #22 on:** June 22, 2011, 08:50:31 AM »

Good advice Critter! Any of the shops that do the V8 conversions might have extra diff's laying around...most of them change to the T56 with the V8 swaps. I think the three places that do the V8 swaps are DDMWorks, Wade's Garage, and Werks. I am not sure if Hahn does the conversions, but it's worth a shot as well.

JimVonBaden · « **Reply #23 on:** June 22, 2011, 09:17:46 AM »

Where in VA are you? If you pick up a new diff I can help you swap it out. I live near Tyson's Mall in Vienna.

Jim

ihawk95 · « **Reply #24 on:** June 22, 2011, 10:01:37 AM »

Just make sure if it's a used one, it's a good one and not any with the issues.

My diff was grinding and whining. Took it in for the recall and come to find out, the bearings were completely destroyed in the diff. So, definitely get another diff asap!

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Author Topic: My differential is grinding (Read 8744 times)