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How to replace fender on 77 620?


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#1 Speedymaru

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Posted 13 July 2017 - 04:53 PM

I'm planning on picking up a 77 620. It was in a front end collision and the passenger fender and valance is pretty well mangled. It's unfixable so I'm just going to replace. I'm sure I can figure out the valance myself but I'm not sure about the fender. How do I got about removing and installing one? Thank you very much

#2 Speedymaru

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Posted 13 July 2017 - 04:55 PM

I'd add a picture of the damage but can't figure out how to

#3 flatcat19

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Posted 13 July 2017 - 05:23 PM

Remove bolts. Remove fender. Install in reverse order.

You can't hang if your nuts haven't dropped...it's physics


#4 flatcat19

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Posted 13 July 2017 - 05:23 PM

Rust penetrate is your friend. And impact tools.

You can't hang if your nuts haven't dropped...it's physics


#5 Speedymaru

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Posted 13 July 2017 - 05:26 PM

Yes, but where are the bolts located? Is there any order to remove them?

#6 datzenmike

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Posted 13 July 2017 - 05:31 PM

There is a small bolt up near the windshield, not sure if you can get to it by opening the door or the cowl must come off. Three? up inside, beside the headlight attaching it to the rad support, and one bolting the chrome bumper to it. One (or two) down at the bottom in the rocker panel area underneath and the rest are along the engine compartment hood line.... and two to the front valance.


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#7 sebpv

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Posted 13 July 2017 - 06:07 PM

If you end up breaking bolts(you will), there are 3 ways to fix it:

1) heat the nut with a burner and try an extractor

2) drill thru the broken bit and rethread a bigger size

3) dremel the welds around the nut, remove it and weld another one back. Thats what im doing. Problem with this one is if you break the rocker panel bolt in the nut, you cant remove the nut. Lucky me i have to redo the side panel behind each corner mount so I can easily access the nut.
Blame my french side if you don't understand

#8 flatcat19

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Posted 13 July 2017 - 06:09 PM

If you end up breaking bolts(you will), there are 3 ways to fix it:
1) heat the nut with a burner and try an extractor
2) drill thru the broken bit and rethread a bigger size
3) dremel the welds around the nut, remove it and weld another one back. Thats what im doing. Problem with this one is if you break the rocker panel bolt in the nut, you cant remove the nut. Lucky me i have to redo the side panel behind each corner mount so I can easily access the nut.



Sert nut. Harbor Freight has a Sert nut tool that actually works really well.

You can't hang if your nuts haven't dropped...it's physics


#9 sebpv

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Posted 13 July 2017 - 06:17 PM

if you can insert it, technically it can also come out, nah?

EDIT: nevermind, i typed HF and found the expending ones
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#10 flatcat19

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Posted 13 July 2017 - 06:31 PM

I use one(not HF's) at work to repair M8 skid plate holes on Tundras, Tacomas, and 4Runners. Never an issue. They hold up well. Lots of torque applied to insert after install.

Other techs in shop bought the HF version to keep up with me. Theirs seem to be working just fine.

You can't hang if your nuts haven't dropped...it's physics


#11 Speedymaru

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Posted 16 July 2017 - 10:47 AM

Well the owner of the truck I was planning on getting backed out on me so now I have to try to find something else. I really like the 620s so I think I'm going to find another one. There's one on Craigslist that has a salvage title. He says the reason for it is a little bit of frontend damage, but it seems very minimal. What do you guys think about that? It's a 78 620 kingcab, with the l20b and 5 speed. Truck looks clean and has an amazing interior

#12 sebpv

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Posted 16 July 2017 - 02:19 PM

id take it. But then i would look for a scrap yard or another salvaged truck with a good frontend. Drill out the spot wels and cleanly install the replacement body
Blame my french side if you don't understand

#13 Speedymaru

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Posted 16 July 2017 - 03:56 PM

Alright cool. What all should be replaced on the front end? I don't know a ton about body components. Thank you

#14 sebpv

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Posted 16 July 2017 - 04:11 PM

depends on the frontend damage...obviously. Front of the firewall can be separated. The body bumper below the headlight can also be separated i believe
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#15 flatcat19

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Posted 16 July 2017 - 05:04 PM

Lack of pics can only take us so far.

You can't hang if your nuts haven't dropped...it's physics


#16 Speedymaru

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Posted 16 July 2017 - 05:45 PM

How do I post pics on this site? And the front end doesn't look that damaged. There's a few small dents on the good but it doesn't seem major. I'm assuming it's been repaired