Paint/Body Corvette Materials, Techniques, and How To

replacing front fenders

Thread Tools
 
Search this Thread
 
Old Jul 7, 2010 | 11:44 AM
  #1  
edwtoo's Avatar
edwtoo
Thread Starter
Heel & Toe
 
Joined: Sep 2009
Posts: 23
Likes: 0
Default replacing front fenders

i am doing a body off restor on a 74 vette the fenders had been replaced by the previous owner and needed to be replaced because of bad bonding and other crappy work. My question is this i have the fenders removed to the bonding strips and i would like to know if i should but the body on then attatch the fenders or can this be done with the body off still.
Reply
Old Jul 7, 2010 | 12:57 PM
  #2  
zwede's Avatar
zwede
Race Director
25 Year Member
Loved
Community Favorite
Top Answer: 1
 
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Default

I'd do it body on, unless your body dolly is a perfect jig (doubtful).
Reply
Old Jul 7, 2010 | 02:46 PM
  #3  
edwtoo's Avatar
edwtoo
Thread Starter
Heel & Toe
 
Joined: Sep 2009
Posts: 23
Likes: 0
Default

no its definitely not a perfect jig...thanks


Reply
Old Jul 7, 2010 | 05:54 PM
  #4  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
Default

Originally Posted by zwede
I'd do it body on, unless your body dolly is a perfect jig (doubtful).
WITHOUT ANY DOUBT!!!!

DO this procedure when you have your body back on....and it is not as easy as you might think it is....especially when getting them to fit correctly with all of the front bumper retainers and the lower valance panel. A very do-able job...but takes a bit of time and patience so when the other parts are being installed...they fit as they should.

There are al lot of "angles of the dangles" to be concerned with...such as your tires not scrubbing the inner skirts (at the rear) and or fender lips ( at the front), front bumper fit, lower valance fit...and the fender being positioned correctly so when the rocker panels are installed...the rockers come to the edge of the fender and not go past or the fender sticking out past the rocker panel(s)...and needless to say the door gaps and flushness to the doors.

IF you do this RIGHT...you should not need any "pop" rivets...except for the two on each front fender flange where it is "pop" riveted to the metal retainer for the bumper area. I have some tricks...if you are interested...unless you have your game plan already. PM me if you like when you get to that point...the choice is yours.

Best of luck. AND any advice I can give right now is to be PATIENT.

"DUB"
Reply
Old Jul 7, 2010 | 06:30 PM
  #5  
edwtoo's Avatar
edwtoo
Thread Starter
Heel & Toe
 
Joined: Sep 2009
Posts: 23
Likes: 0
Default

i am in the process now of cleaning up the firewall and grinding all of the excess adhesive as well as cleaning the under body and prepping for lizard skin. I will definitley PM you when i get closer, i have looked for info on installing fenders and i havent had much luck
Reply
Old Jul 8, 2010 | 05:49 PM
  #6  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
Default

Originally Posted by edwtoo
i am in the process now of cleaning up the firewall and grinding all of the excess adhesive as well as cleaning the under body and prepping for lizard skin. I will definitley PM you when i get closer, i have looked for info on installing fenders and i havent had much luck
In areas where the factory adhesive is thick...do not remove all of it. Leave a very small spot so it can be used as a shim so when you go to install your new fender...so you do not have to try to duplicate the thickness as GM did. I will leave small pads about then width of a pencil...in key areas...so when I am setting the fender..it will allow me to be able to get things set correctly...and when I apply my adhesive...I know that the fender will only go as far as the pad will allow. Most of the time the adhesive is quite thin and not an issue...but in some areas it can be almost 1/2" thick...and that makes it harder to get that build across the bonding area. Leaving these small pads will allow you to fill up to and on top of them so you know that you will have adhesive touching both parts.
"DUB"
Reply
Old Jul 9, 2010 | 01:29 PM
  #7  
edwtoo's Avatar
edwtoo
Thread Starter
Heel & Toe
 
Joined: Sep 2009
Posts: 23
Likes: 0
Default

well thats good information to know, for the next time i remove fenders that is...i have already removed all of the old adhesive, i was planning on using some modeling clay wrapped in saran wrap then positioning the fender in place.... take measurement of the clay, then build the area up with fiberglass to position the fender in place....youre way would have been much easier though. My way generaly always causes me more work the first time......thanks for any other info that would help me in advance.....lol

Last edited by edwtoo; Jul 9, 2010 at 02:23 PM.
Reply
Old Jul 9, 2010 | 05:52 PM
  #8  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
Default

Originally Posted by edwtoo
well thats good information to know, for the next time i remove fenders that is...i have already removed all of the old adhesive, i was planning on using some modeling clay wrapped in saran wrap then positioning the fender in place.... take measurement of the clay, then build the area up with fiberglass to position the fender in place....youre way would have been much easier though. My way generaly always causes me more work the first time......thanks for any other info that would help me in advance.....lol
The modeling clay and saran wrap is a good idea. But there is no need to build up the thickness that the modeling clay provides with fiberglass and resin. This can be done much easier and quicker with the adhesive that you will use to bond the fender on with. the adhesive sets up a lot faster than fiberglass and resin...and is not as messy... and you can easily shave it to the height you need.

"DUB"
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jul 9, 2010 | 06:21 PM
  #9  
edwtoo's Avatar
edwtoo
Thread Starter
Heel & Toe
 
Joined: Sep 2009
Posts: 23
Likes: 0
Default

ok i like that idea much better thank you, I am planning on using 3m 8115 panel adhesive. I think I had seen a post that that is what you recommend? i could be wrong though.

I have a ton of work left on the firewall before i can primer and lizard skin it, i found a crack at the dimmer switch that i am going to have to glass in as well as some repairs to the inner fender wells. So i probably wont be putting fenders on for a couple months now, but when i do i will post pictures
Reply
Old Jul 10, 2010 | 08:38 AM
  #10  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
Default

Yeah, you are wrong...I do not use 3M adhesive when bonding on fenders....although many do use it....or at least that is what I think they use. We can get into that when you get closer..just PM me.....or bring it back up on this post.
"DUB"
Reply

Get notified of new replies

To replacing front fenders





All times are GMT -4. The time now is 04:01 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE