No additive after recall?

[cracker]

Originally Posted by Small Dealer There is a nut that retains the drive flange that is removed and replaced as part of the updated pinion oil seal replacement procedures, which are also the recall procedures.

That's the one. If you loosen that one all the preload goes away. My question was how the dealer re preloads those bearings.

Behind the nut is the flange, behind the flange is the tail bearing, then the slinger (washer like), then the crush washer (a hollow cylinder shape with a bludge in the middle to help hold preload) then the head bearing, then the pinion head. As you tighten the nut, it tightens the nut against the flange and puts preload on the opposed bearings. That force is in the 1000 lb to 1500 lb range for max bearing life. This value is determined by the bearing manufacture like Timken. How does the dealer get it there. It's not a torque value.

[Small Dealer]

Originally Posted by cracker Behind the nut is the flange, behind the flange is the tail bearing, then the slinger (washer like), then the crush washer (a hollow cylinder shape with a bludge in the middle to help hold preload) then the head bearing, then the pinion head.

We just had a backyard mechanic in this week getting a "crush collar" for his 1987 pickup.

The Getrag differential used in the Solstice doesn't appear to have the set up as you described, or use a collapsible drive pinion gear spacer.

[cracker]

Originally Posted by Small Dealer We just had a backyard mechanic in this week getting a "crush collar" for his 1987 pickup. The Getrag differential used in the Solstice doesn't appear to have the set up as you described, or use a collapsible drive pinion gear spacer.

you're right. did alittle more digging and found out it's a shim pack set up. The preload will be reset with the proper torque on the pinion nut. (this system is relatively new). Preload will be reset as long as none of the parts were changed.

thanks for your help

note: just about every RWD truck on the road today uses a colapsible spacer. some are playing with the shim pack or properly termed "solid spacer" design though.

cracker

[ggccg]

My 2007 Sky is in for the diff recall... 4 days now. They said all of the seals were leaking and they found bits of metal in the fluid. I never saw a drop of oil on the ground under the car.

They ordered a whole new differential and they are now telling me (on day 4) that is it still not ready because they don't have any of "the additive" in stock.

Interesting. I had a standard differential. Does this imply that perhaps they replaced my standard diff with an LSD? Or are they now using the additive on all differentials as part of the fix? Just giving me a line of BS for some reason? Or perhaps they are wrong about the need for "the additive."

Which raises the question: Is there any hazard to using "the additive" in non-LSD differentials?

[bigblau]

Originally Posted by ggccg My 2007 Sky is in for the diff recall... 4 days now. They said all of the seals were leaking and they found bits of metal in the fluid. I never saw a drop of oil on the ground under the car. They ordered a whole new differential and they are now telling me (on day 4) that is it still not ready because they don't have any of "the additive" in stock. Interesting. I had a standard differential. Does this imply that perhaps they replaced my standard diff with an LSD? Or are they now using the additive on all differentials as part of the fix? Just giving me a line of BS for some reason? Or perhaps they are wrong about the need for "the additive." Which raises the question: Is there any hazard to using "the additive" in non-LSD differentials?

I wouldn't worry about the additive in your non-LSD diff. Shouldn't hurt anything. But Good Luck with your new rear-end.

[Moose GXP]

I finally got my GXP in for the recall today. It took the indicated 3 hours and i I have the kit, gear lubricant and additive listed on my paperwork. They had the seal kit in stock. No problems so far. This is my 2nd pinion seal replacement, although this time it was strictly for the recall...no problems after the first replacement.

[kwtoxman]

Originally Posted by kwtoxman I had the recall done on my gxp (comes with lsd standard) and found out the additive is NOT required unless the diff is making noise after. The additive is not recommended otherwise. I thought the additive was required but I was wrong. But the dealer checked again, and in reading this closely I realized that was not the case. The service manager explained it well. Hope this helps! kw........

UPDATED - THIS ADDITIVE INFO IS WRONG
kw........

[DRM]

Originally Posted by kwtoxman I had the recall done on my gxp (comes with lsd standard) and found out the additive is NOT required unless the diff is making noise after. The additive is not recommended otherwise. I thought the additive was required but I was wrong. But the dealer checked again, and in reading this closely I realized that was not the case. The service manager explained it well. Hope this helps! kw........

Did you check if they dented the bottom of your car. I have to get my service receipt from yesterdays recall work. I forgot to pick it up. Still fuming over body damage.

[Small Dealer]

Originally Posted by kwtoxman I had the recall done on my gxp (comes with lsd standard) and found out the additive is NOT required unless the diff is making noise after. The additive is not recommended otherwise. I thought the additive was required but I was wrong. But the dealer checked again, and in reading this closely I realized that was not the case. The service manager explained it well. Hope this helps!

The situation where the additive would be required, would be if the dealership drained the differential before doing the recall procedure. Then when refilling with new fluid, the additive would go in.

If the dealership just topped off the fluid after the recall (if even required) then there is no call for the additive.

If the dealership didn't bother to check the fluid level, then no additive would be needed.

[kwtoxman]

Originally Posted by Small Dealer The situation where the additive would be required, would be if the dealership drained the differential before doing the recall procedure. Then when refilling with new fluid, the additive would go in. If the dealership just topped off the fluid after the recall (if even required) then there is no call for the additive. If the dealership didn't bother to check the fluid level, then no additive would be needed.

The dealer did a fluid change on the diff. This thread and the dealer tech said that the additive is not necessarily required. He said GM only recommends using the additive if the diff is making noise. Supposedly it is in another TSB.

At this moment I have synthetic fluid but no additive.

kw.....

[bradsol]

Same...no additive after the pinion seal recall.

[Small Dealer]

Originally Posted by kwtoxman The dealer did a fluid change on the diff. This thread and the dealer tech said that the additive is not necessarily required. He said GM only recommends using the additive if the diff is making noise. Supposedly it is in another TSB. .

Could you please point out in this thread where it indicates that no additive is required with a diiferential fluid change on a Limited Slip Differential equipped Solstice.

Here is the fluid change instructions for the 2006 Solstice Service Manual, note the section in red:

2006 Pontiac Solstice | Solstice (VIN M) Service Manual | Driveline/Axle | Rear Drive Axle | Repair Instructions | Document ID: 1768593 -------------------------------------------------------------------------------- Axle Lubricant Change Draining Procedure 1) Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . 2) Clean any dirt from around the differential drain plug. 3) Position a drain pan under drain plug. 4) Remove the drain plug from the differential and drain the fluid. Filling Procedure 1) Install the drain plug to the differential. Tighten the differential drain plug to 35 N·m (26 lb ft). 2) Clean any dirt from around the differential fill plug. 3) Remove the fill plug from the differential. Important: If equipped with a limited slip differential, limited slip differential lubricant additive, GM P/N 1052358 (Canadian P/N 992694) or equivalent must be added first. Refer to Lubrication Specifications . Approximately 0.23 L (7.8 oz) of residual fluid will remain in the differential. 4) Fill the differential with 75W90 synthetic axle lubricant, GM P/N 12378261 (Canadian P/N 10953455) or equivalent. Refer to Lubrication Specifications . 5) Inspect the gear lubricant level to ensure it is even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening. 6) Install the fill plug to the differential. Tighten the fill plug to 35 N·m (26 lb ft).

[kwtoxman]

Originally Posted by Small Dealer Could you please point out in this thread where it indicates that no additive is required with a diiferential fluid change on a Limited Slip Differential equipped Solstice.

Thx for the info. I hope to resolve this. The confusion really pisses me off. You'd think my dealer would know what to do.

Originally Posted by AWhatstice? ....... all vehicles affected require one of the 3 Seal Kits (our Solstice getting Seal Kit 19179933), and all vehicles require 89021677 - Lubricant, Gr Synthetic, SAE 75W-90, but not all with Limited-Slip Differential will get the 01052358 - Lubricant, because it's only 'as needed'. I guess its how the (as needed) is interpreted. Is the list saying that the 01052358 - Lubricant is needed for all Limited-Slip Differentials, or it's up to the Tech to determine if it's needed or not on Limited-Slip Differentials based on some other criteria/inspection/observation not described on the list? I can see where there could be some misinterpretation of the recall parts list without further clarification.

Originally Posted by JustMike This is the correct part number for the additive ... 01052358 - Lubricant, Limited-Slip Differential (if needed)

This is the big issue. the 'as needed' quotes. WTF is if needed? Talk about vague.


Here is a TSB that talks about not using the additive at one point. Any comments?

Service Information Document ID# 1824733 2004 Cadillac CTS Subject: Shudder or Bind On Low Speed Turns - keywords axle differential groan growl moan noise rear slow vibration #PIP3152G - (05/03/2006) Models: 2004-2006 Cadillac SRX, CTS, CTSV 2005-2006 Cadillac STS 2006 Pontiac Solstice 2007 Saturn Sky Equipped with Limited Slip Differential (RPO - G80) This PI is being updated to include 2007 Saturn Sky and also update the Part number for the axle fluid and include part number disclaimer. Please discard PIP3152F The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern: Service Information: Customer may comment of a shudder or bind from the rear of vehicle on low speed turns such as parking lot maneuvers on vehicles equipped with G80 limited slip rear axle. This condition may be more noticeable with the vehicle at operating temperatures. Recommendation/Instructions: Drive the vehicle to warm the rear axle and then drain the axle fluid. Refill with just the 89021677 (in Canada, use 89021678) axle lube and drive the vehicle about 10 minutes performing mostly parking lot turning maneuvers. Drain the rear axle again and mix 1200 ml of 89021677 (in Canada, use 89021678) and 74-89 ml of 1052358 (Canadian P/N 992694) additive outside of the axle and then fill the rear axle with this mixture and re-evaluate. Part numbers are subject to change. Use any superseded part numbers if the part numbers in this document become discontinued. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION © Copyright General Motors Corporation. All Rights Reserved. Document ID# 1824733 2004 Cadillac CTS

[MomsSol]

Originally Posted by kwtoxman Here is a TSB that talks about not using the additive at one point. Any comments?

Says right here to ADD the additive:

Recommendation/Instructions: Drive the vehicle to warm the rear axle and then drain the axle fluid. Refill with just the 89021677 (in Canada, use 89021678) axle lube and drive the vehicle about 10 minutes performing mostly parking lot turning maneuvers. Drain the rear axle again and mix 1200 ml of 89021677 (in Canada, use 89021678) and 74-89 ml of 1052358 (Canadian P/N 992694) additive outside of the axle and then fill the rear axle with this mixture and re-evaluate.

Have to read ALL the words in order the understand exactly what they are wanting the tech to do. Drain, fill, rinse, mix additive WITH the diff fluid and refill and then RE-Evaluate.

[Small Dealer]

Originally Posted by kwtoxman This is the big issue. the "as needed' quotes. What is if needed? Talk about vague.

The recall procedure bulletin, lists the limited slip additive as "If Needed" in the reuired parts section. That is because the front differential on the Cadillac SRX (part of the recall population) doesn't require it and rear differentials that are non Limited Slip do not require it, and if the fluid wasn't drained then no application would need it.

Not vague at all.

Originally Posted by kwtoxman Here is a TSB that talks about not using the additive at one point. Any comments?

Yes, talks about not using it for 10 minutes. On a two year old outdated message that has been updated another 4 times.