Gas tank grommets, question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JimKshortstep4x4 · 08-12-2004, 06:31 AM

We seem to have trouble with the life of gas tank grommets. The last one that I bought only lasted 6 months before ozone destroyed it. The Chevy Dealer has told me that the GM grommets are not available anymore.

Does anyone know of a good repop grommet?

Jim

bobs409 · 08-12-2004, 07:48 AM

I don't know but wanted to agree with you! Mine was loaded with small cracks within 6 months or so!

I got mine from Chevyduty.

Funny thing, I looked at the one on the truck in my other thread (Enough to make a grown truck guy cry) and that one looks original with no cracks at all! That means the original 36 year old grommet is still going strong.

They sure don't make 'em like they used to.

JimKshortstep4x4 · 08-12-2004, 09:09 AM

bobs409,

I have (3) old originals that are still good, but I need a couple more and I don't know what to buy. I got the grommets that went bad from chevy Duty, also.

Jim

**GMCPaul** · 08-12-2004, 09:45 AM

They are both still available from GM
3886792 gets you a 2" fuel neck grommet, & part #3978799 gets you a 1 1/2" fuel neck grommet. Just order the part # you need.
GMCPaul

72c10step · 08-12-2004, 10:54 AM

Quote:

Originally Posted by GMCPaul

They are both still available from GM
3978799 gets you a 2" fuel neck grommet, & part #3978799 gets you a 1 1/2" fuel neck grommet. Just order the part # you need.
GMCPaul

GMCPaul, which P/N goes with which diameter (what you have listed is the same

)

JimKshortstep4x4 · 08-12-2004, 11:22 AM

I checked with the Chevy dealer and the PN's are good with them.

Thanks GMC Paul!

Now I just need to know the neck size of the tanks.

Jim

**GMCPaul** · 08-12-2004, 11:12 AM

72C10step I corrected the part# for 2" gasket, Thanks for pointing that out!!!
GMCPaul

72c10step · 08-16-2004, 06:10 PM

Quote:

Originally Posted by GMCPaul

72C10step I corrected the part# for 2" gasket, Thanks for pointing that out!!!
GMCPaul

No problem, I need a gasket too, and wanted to be sure of which one I needed. Thanks!

*FormerMember* · 08-12-2004, 12:54 PM

Thanks for that info. Very useful...

LUV2XCLR8 · 08-16-2004, 06:20 PM

HOW REUSABLE ARE THEY, ON AND OFF, HOW MANY TIMES U THINK

JimKshortstep4x4 · 08-16-2004, 08:07 PM

If you soap them and don't tear them in the process they seem to hold up very well.

Jim

PS: I got my grommets today that I ordered last week from the Chevy dealer and they look great.

Jim

08-12-2004, 06:31 AM	#1
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Gas tank grommets, question We seem to have trouble with the life of gas tank grommets. The last one that I bought only lasted 6 months before ozone destroyed it. The Chevy Dealer has told me that the GM grommets are not available anymore. Does anyone know of a good repop grommet? Jim

08-12-2004, 07:48 AM	#2
bobs409 1969 Custom 30 wrecker Join Date: Sep 2001 Location: Pottsville, Pa Posts: 2,611	I don't know but wanted to agree with you! Mine was loaded with small cracks within 6 months or so! I got mine from Chevyduty. Funny thing, I looked at the one on the truck in my other thread (Enough to make a grown truck guy cry) and that one looks original with no cracks at all! That means the original 36 year old grommet is still going strong. They sure don't make 'em like they used to. __________________ Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10

08-12-2004, 09:45 AM	#4
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,721	They are both still available from GM 3886792 gets you a 2" fuel neck grommet, & part #3978799 gets you a 1 1/2" fuel neck grommet. Just order the part # you need. GMCPaul __________________ Secure Online Catalog for-GMCPauls Truck Parts Email- GMCPAULS@GMAIL.COM Last edited by GMCPaul; 08-12-2004 at 11:10 AM.

08-16-2004, 06:20 PM	#10
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,484	HOW REUSABLE ARE THEY, ON AND OFF, HOW MANY TIMES U THINK __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

08-12-2004, 09:09 AM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	bobs409, I have (3) old originals that are still good, but I need a couple more and I don't know what to buy. I got the grommets that went bad from chevy Duty, also. Jim

08-12-2004, 11:22 AM	#6
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	I checked with the Chevy dealer and the PN's are good with them. Thanks GMC Paul! Now I just need to know the neck size of the tanks. Jim

08-12-2004, 11:12 AM	#7
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,721	72C10step I corrected the part# for 2" gasket, Thanks for pointing that out!!! GMCPaul

08-12-2004, 12:54 PM	#9
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Thanks for that info. Very useful...

08-16-2004, 08:07 PM	#11
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	If you soap them and don't tear them in the process they seem to hold up very well. Jim PS: I got my grommets today that I ordered last week from the Chevy dealer and they look great. Jim



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