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Old 01-20-2019, 11:27 AM   #1
1971Stepside
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What is this for?

What is this bump on the drivers side inner fender for? I’m wanting to smooth this out. Do I need to keep it?
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

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Old 01-20-2019, 12:10 PM   #2
rjs53
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Re: What is this for?

Mine are so dinged up I thought that was just another dent. It doesn't seem to support anything, I guess I'm no help. Someone has to know.
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Old 01-20-2019, 12:14 PM   #3
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Re: What is this for?

I always thought it was for added steering box clearance, but not sure.
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Old 01-20-2019, 03:11 PM   #4
Greasey Harley
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Re: What is this for?

Battery box support for right hand drive trucks?
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Old 01-20-2019, 04:08 PM   #5
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Re: What is this for?

Left ti.... Nevermind

Auxiliary battery support I guess.
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Old 01-20-2019, 04:32 PM   #6
1971Stepside
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Re: What is this for?

It doesn’t look like the battery support on the passenger side so I didn’t think that was it
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 01-20-2019, 04:46 PM   #7
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Re: What is this for?

Maybe it is a way for a Chinese reproduction part manufacturer to avoid civil penalties from GM for trade infringement if it were identical to the original.
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Old 01-20-2019, 05:15 PM   #8
terry b
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Smile Re: What is this for?

Maybe it's a tumor.
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Old 01-20-2019, 05:21 PM   #9
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Re: What is this for?

It's not a tumer
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Old 01-20-2019, 05:27 PM   #10
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Re: What is this for?

Maybe it's a spot that got wet on Gizmo like in Gremlins and it's going to pop out a baby Giz.
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Old 01-20-2019, 05:38 PM   #11
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Re: What is this for?

What ever it is if you don't want it there get rid of it!
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Old 01-20-2019, 05:54 PM   #12
1971Stepside
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Re: What is this for?

This is getting funny
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

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Old 01-20-2019, 05:57 PM   #13
Redneck Rydes
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Re: What is this for?

I would agree on the left hand battery tray
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Old 01-20-2019, 06:16 PM   #14
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Re: What is this for?

Quote:
Originally Posted by Redneck Rydes View Post
I would agree on the left hand battery tray
Are you and others who suggest battery tray looking at the bump circled in red?
I have no idea what it's for. My 1970 inner fender is different but has a similar bump. The bump on my inner fender looks like someone tried to drive a piece of 2 and 1/4 pipe through the inner fender.
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Old 01-20-2019, 06:18 PM   #15
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Re: What is this for?

.
Nice flat spot for a ground strap?
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Old 01-20-2019, 09:42 PM   #16
Andy4639
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Talking Re: What is this for?

From the looks of this post it's a conversational piece!
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Old 01-20-2019, 10:19 PM   #17
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Re: What is this for?

The inner fenders might have been designed to be on a variety of vehicles outside the regular trucks and this might have included (for instance) military vehicles.
If it was used there it might have had a specific task that would never show up on the general pickups.
I don't know this for sure....but it is a possibility.

All good
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Old 01-20-2019, 11:54 PM   #18
1971Stepside
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Re: What is this for?

Interesting. Never thought I would see this group stumped on something LOL
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 01-21-2019, 12:15 AM   #19
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Re: What is this for?

Quote:
Originally Posted by Andy4639 View Post
From the looks of this post it's a conversational piece!
Best answer yet
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Old 01-21-2019, 12:17 AM   #20
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Re: What is this for?

Not stumped. Just exploring all possibilities.
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Old 01-21-2019, 03:11 AM   #21
kwmech
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Re: What is this for?

Battery tray mount dual batteries, should be a dimple right in the center of the pad.
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Old 01-21-2019, 09:01 AM   #22
68panelman
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Re: What is this for?

It's for stacking purposes after they were stamped in the factory. IDK!
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Old 01-21-2019, 03:10 PM   #23
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Re: What is this for?

You sit your beer there when working under the hood.
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Old 01-21-2019, 03:35 PM   #24
michael bustamante
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Re: What is this for?

ok now someone HAS to go put a jacket on, go outside with their coffee, dust the snow off and look down there and see whats underneath this monstrocity of a bump that mysteriously appeared on all of our trucks at the same time and figure out what its clearing for!!
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Old 01-21-2019, 09:45 PM   #25
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Re: What is this for?

Don't look at me.
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