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#4566593 - 11/07/17 08:52 AM Different color bump stops, same P/N, why ???
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
Just recieved my genuine GM bump stops. They are different colors! Part numbers on the bag match. Same size. Both have the BASF logo on them. No dirt, scuffs, etc. Bag appears to be sealed. I don't care if I have color matching bump stops, just wondering if its ok to proceed with install.

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06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 149k ST HM 10w30

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#4566596 - 11/07/17 08:54 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: Colorado
Different production runs? One is aged on the shelf, and the other is new? If they are the same as far as compressibility then I'd call it good. If they are different then it's time for a do over.
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#4566607 - 11/07/17 09:00 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
I can't tell. Pushing on them seems the same. Both hard.
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06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 149k ST HM 10w30

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#4566610 - 11/07/17 09:02 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
Bottom_Feeder Offline


Registered: 12/07/08
Posts: 3013
Loc: Occupied Virginia
Originally Posted By: LeakySeals
just wondering if its ok to proceed with install.

Why wouldn't it be?

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#4566616 - 11/07/17 09:09 AM Re: Different color bump stops, same P/N, why ??? [Re: Bottom_Feeder]
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
Originally Posted By: Bottom_Feeder
Originally Posted By: LeakySeals
just wondering if its ok to proceed with install.

Why wouldn't it be?

Because it doesn't look like something as simple as red vs black rubber. Almost looks like exposure, or a different type of rubber. Was wondering if anyone else has seen this replacing the bump stops.
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06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 149k ST HM 10w30

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#4566622 - 11/07/17 09:13 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
PimTac Offline


Registered: 03/04/17
Posts: 4329
Loc: Soviet State of Washington
Sun exposure? One was at the front of the shelf where the sun could hit it. The other was behind. Would that affect the material?
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#4566626 - 11/07/17 09:17 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
khittner Offline


Registered: 07/13/12
Posts: 314
Loc: Michigan
Maybe you should check out the relevant forum: DITBSG (Darrell Is The Bump Stop Guy) . . .

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#4566631 - 11/07/17 09:20 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
440Magnum Offline


Registered: 02/01/09
Posts: 8754
Loc: Texas
I doubt they are super careful about the amount of dye mixed into each batch of whatever polymer they're using. I wouldn't give it a second thought.
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#4566640 - 11/07/17 09:28 AM Re: Different color bump stops, same P/N, why ??? [Re: 440Magnum]
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
Yeah, I hope its just the dye. Agree, wouldn't give it a second though except for the truck sits on them full time in the front.
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03 Maxima 3.5L 149k ST HM 10w30

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#4566647 - 11/07/17 09:36 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
KGMtech Offline


Registered: 10/17/14
Posts: 967
Loc: SW Ontario Canada
The darker of the two has had some UV exposure. Nothing to worry about, proceed with installation.
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#4566675 - 11/07/17 09:57 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
DoubleWasp Offline


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
I've seen GM bump stops in both colors. Different dye on a different day for a part where color doesn't matter anyways.

Just because the bump stops are different colors does not mean one bump stop is better than the other. They're both very good bump stops, both will do a good job, and should be paid the same wages and have the same opportunities.
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#4566702 - 11/07/17 10:33 AM Re: Different color bump stops, same P/N, why ??? [Re: LeakySeals]
Bottom_Feeder Offline


Registered: 12/07/08
Posts: 3013
Loc: Occupied Virginia
Originally Posted By: LeakySeals
the truck sits on them full time in the front.

Which doesn't sound right.

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#4566710 - 11/07/17 10:42 AM Re: Different color bump stops, same P/N, why ??? [Re: Bottom_Feeder]
IndyIan Offline


Registered: 09/23/08
Posts: 9092
Loc: Ontario, Canada
Originally Posted By: Bottom_Feeder
Originally Posted By: LeakySeals
the truck sits on them full time in the front.

Which doesn't sound right.

Sounds like a 1/2 ton plow truck? Can't say I've seen an Escalade with a plow on.
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#4566723 - 11/07/17 11:02 AM Re: Different color bump stops, same P/N, why ??? [Re: IndyIan]
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
Originally Posted By: IndyIan
Originally Posted By: Bottom_Feeder
Originally Posted By: LeakySeals
the truck sits on them full time in the front.

Which doesn't sound right.

Sounds like a 1/2 ton plow truck? Can't say I've seen an Escalade with a plow on.


Yeah, I searched around, and it appears to be the way it is on all this era SUVs. Sits right on the control arm all the time.


Not in the rear, its floating on the air bags. Doing them anyways.

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06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 149k ST HM 10w30

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#4566765 - 11/07/17 11:37 AM Re: Different color bump stops, same P/N, why ??? [Re: khittner]
Lolvoguy Offline


Registered: 02/06/14
Posts: 2348
Loc: Canada
Originally Posted By: khittner
Maybe you should check out the relevant forum: DITBSG (Darrell Is The Bump Stop Guy) . . .


smirk
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