OEM 68 Chevy fender problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72c20customcamper · 09-08-2022, 03:11 PM

I have a set of near mint 68 fenders . I welded up the molding holes as it’s going on a stepper after I was done I stripped the fender and found two cracks near the cowl mounting bracket . Is it a normal occurrence or not ? None of my other trucks have it as far as I can see. I’m going to weld them up but it seems strange

**kwmech** · 09-08-2022, 03:30 PM

Stress cracks from core support bushings being bad?

72c20customcamper · 09-08-2022, 04:06 PM

They did come off a truck that was lowered , very poorly I will add. The guy I bought them from bought the truck and proceeded to have his body shop redo it . He bought all nos sheet metal. Shop guy said he was crazy as all the sheet metal was really just as good as the nos stuff

**pjmoreland** · 09-08-2022, 04:20 PM

I checked my '68 fenders just now, and there are no cracks in that location.

I went to a local GM-only truck show last weekend and I saw quite a few trucks that were so low that they had no inner fenders despite the fact that the inner fenders are a significant structural component of the front clip. Did your truck have inner fenders installed?

72c20customcamper · 09-08-2022, 04:40 PM

Quote:

Originally Posted by pjmoreland

I checked my '68 fenders just now, and there are no cracks in that location.

I went to a local GM-only truck show last weekend and I saw quite a few trucks that were so low that they had no inner fenders despite the fact that the inner fenders are a significant structural component of the front clip. Did your truck have inner fenders installed?

The truck they came off of had no inner fenders .

**pjmoreland** · 09-08-2022, 05:00 PM

The big bolt/washer that passes through the square hole in the back of the inner fender and threads into the firewall provides a significant amount of lateral bracing for the outer fenders.

**special-K** · 09-09-2022, 07:37 AM

An odd phenomenon.

72c20customcamper · 09-09-2022, 10:22 AM

Very odd . Welded it up but found two more cracks .

**pjmoreland** · 09-09-2022, 11:19 AM

Were there any scuff marks on the underside of your fenders? Maybe the tops of the wheels were bottoming out on them when hitting bumps in the road.

72c20customcamper · 09-09-2022, 06:20 PM

Quote:

Originally Posted by pjmoreland

Were there any scuff marks on the underside of your fenders? Maybe the tops of the wheels were bottoming out on them when hitting bumps in the road.

Not that I noticed. I’m thinking the lowering and the fact it had a 8.1 in it may have stressed it a bit

72c20customcamper · 09-09-2022, 06:24 PM

Primed and painted the white on it today . Block out the rest and tape and spray the color .

**special-K** · 09-10-2022, 07:03 AM

I'm thinking they are rejects, meaning this happened from the stamping process. Maybe stretched thin

72c20customcamper · 09-10-2022, 08:43 AM

Quote:

Originally Posted by special-K

I'm thinking they are rejects, meaning this happened from the stamping process. Maybe stretched thin

I would think rejects that didn’t pass quality control never made it out of the stamping plant . It’s a mystery . I bought these because they had the triangles in the front that the early stamping had

**special-K** · 09-10-2022, 10:19 AM

Yeah, I was thinking got past quality control? Late Friday before holiday?

72c20customcamper · 09-10-2022, 07:56 PM

Still shines though .

**special-K** · 09-10-2022, 08:57 PM

Just needed fixt

1967-C10 · 09-13-2022, 08:52 AM

slice it, weld it.

09-08-2022, 03:11 PM	#1
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,155	OEM 68 Chevy fender problem I have a set of near mint 68 fenders . I welded up the molding holes as it’s going on a stepper after I was done I stripped the fender and found two cracks near the cowl mounting bracket . Is it a normal occurrence or not ? None of my other trucks have it as far as I can see. I’m going to weld them up but it seems strange Attached Images __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

09-08-2022, 03:30 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,393	Re: OEM 68 Chevy fender problem Stress cracks from core support bushings being bad?

09-08-2022, 04:06 PM	#3
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,155	Re: OEM 68 Chevy fender problem They did come off a truck that was lowered , very poorly I will add. The guy I bought them from bought the truck and proceeded to have his body shop redo it . He bought all nos sheet metal. Shop guy said he was crazy as all the sheet metal was really just as good as the nos stuff __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

09-08-2022, 04:20 PM	#4
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,332	Re: OEM 68 Chevy fender problem I checked my '68 fenders just now, and there are no cracks in that location. I went to a local GM-only truck show last weekend and I saw quite a few trucks that were so low that they had no inner fenders despite the fact that the inner fenders are a significant structural component of the front clip. Did your truck have inner fenders installed?

09-08-2022, 05:00 PM	#6
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,332	Re: OEM 68 Chevy fender problem The big bolt/washer that passes through the square hole in the back of the inner fender and threads into the firewall provides a significant amount of lateral bracing for the outer fenders.

09-09-2022, 07:37 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: OEM 68 Chevy fender problem An odd phenomenon. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-09-2022, 10:22 AM	#8
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,155	Re: OEM 68 Chevy fender problem Very odd . Welded it up but found two more cracks . Attached Images __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

09-09-2022, 11:19 AM	#9
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,332	Re: OEM 68 Chevy fender problem Were there any scuff marks on the underside of your fenders? Maybe the tops of the wheels were bottoming out on them when hitting bumps in the road.

09-09-2022, 06:24 PM	#11
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,155	Re: OEM 68 Chevy fender problem Primed and painted the white on it today . Block out the rest and tape and spray the color . Attached Images __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

09-10-2022, 07:03 AM	#12
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: OEM 68 Chevy fender problem I'm thinking they are rejects, meaning this happened from the stamping process. Maybe stretched thin __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-10-2022, 10:19 AM	#14
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: OEM 68 Chevy fender problem Yeah, I was thinking got past quality control? Late Friday before holiday? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-10-2022, 07:56 PM	#15
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,155	Re: OEM 68 Chevy fender problem Still shines though . Attached Images __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

09-10-2022, 08:57 PM	#16
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: OEM 68 Chevy fender problem Just needed fixt __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-13-2022, 08:52 AM	#17
1967-C10 Registered User Join Date: Mar 2022 Location: Round Rock Texas Posts: 104	Re: OEM 68 Chevy fender problem slice it, weld it.



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