FRONT FENDER COWL CAGE NUT Gone

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

AndyL

Junior Member
Joined
Oct 29, 2024
Posts
1
Reaction score
0
Location
Texas
First Name
Andy
Truck Year
1985
Truck Model
C10
Engine Size
350
Front fender cowl cage nut missing. I'm finally ready to put my new fenders on my 85 chevy c10 and noticed the cage nut on the inside of the cowl that is used to bolt the top of the fender to the cowl is gone. Pulled the dash apart along with the ac duct and there is no way to get to that area from the inside of the cab. Only thing I can think of is using a hole saw and cut a new hole on the inside of the cab under the dash even with where the hole is on the outside of the cowl. Without that bolt there the fender wont line up with the door. Anyone else ran into this?
 

TotalyHucked

Full Access Member
Joined
Feb 24, 2020
Posts
3,671
Reaction score
11,854
Location
Auburn, Georgia
First Name
Zach
Truck Year
1985
Truck Model
Sierra 1500
Engine Size
5.3
I just broke mine off about a month ago putting my fenders back on after doing door hinges :893Chainsaw-Smilie-:banghead::angry94::biggun::flame::Whoa::wtf2::suicide::suicide: My fender still lined up pretty decent using the top bolt that goes down into the cowl, under the hood.
 

legopnuematic

Licensed Junk Dealer
Supporting Member
Joined
Oct 27, 2016
Posts
2,505
Reaction score
6,479
Location
MO
First Name
Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
What is missing? On the a pillar by the door jamb, or the bolt on the cowl that is under the hood?

Missing like missing, missing? Or stripped or? We need pics.

There are potential solutions to either, but different solutions.
 

legopnuematic

Licensed Junk Dealer
Supporting Member
Joined
Oct 27, 2016
Posts
2,505
Reaction score
6,479
Location
MO
First Name
Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
I just broke mine off about a month ago putting my fenders back on after doing door hinges :893Chainsaw-Smilie-:banghead::angry94::biggun::flame::Whoa::wtf2::suicide::suicide: My fender still lined up pretty decent using the top bolt that goes down into the cowl, under the hood.
In the a pillar? Have you tried to drill it with a right hand drill bit?

The idea is if it grabs, it will thread itself in and just fall into the cavity, then chase the threads and install new bolt.

Use a drill appropriate diameter for a tap drill, either 1/4-28 or 5/16 (coarse or fine is fine). If the drill doesn’t get it moving, tap it, tap might get it moving, if not, use a bolt and jam it in to attempt to thread it in.
 

TotalyHucked

Full Access Member
Joined
Feb 24, 2020
Posts
3,671
Reaction score
11,854
Location
Auburn, Georgia
First Name
Zach
Truck Year
1985
Truck Model
Sierra 1500
Engine Size
5.3
In the a pillar? Have you tried to drill it with a right hand drill bit?

The idea is if it grabs, it will thread itself in and just fall into the cavity, then chase the threads and install new bolt.

Use a drill appropriate diameter for a tap drill, either 1/4-28 or 5/16 (coarse or fine is fine). If the drill doesn’t get it moving, tap it, tap might get it moving, if not, use a bolt and jam it in to attempt to thread it in.
Yeah, the one in the A-pillar. I think mine stripped but is still there. I need to go look at our A-pillar assembly on the shelf and see how it's attached. Not sure if it's a cage nut or what but the bolt would still spin, just not tighten up. I was able to get it out by prying underneath it
 

mxer147

83 K20, 350 vortec, 465, 208, 14/10, 4.10, 33s
Joined
Feb 8, 2023
Posts
607
Reaction score
2,191
Location
Colorado
First Name
Jack
Truck Year
1983
Truck Model
k20
Engine Size
350
I welded the cage nut to a washer. I then drilled four new holes around the sheet metal where the cage nut belongs. I then put the washered cage nut where it belongs and held it tight with a bolt threaded into the nut. I then welded the four drilled holes since the washer lined up with them. I will chase the treads with a tap and lubricate before I use it to attach the fender.
 

legopnuematic

Licensed Junk Dealer
Supporting Member
Joined
Oct 27, 2016
Posts
2,505
Reaction score
6,479
Location
MO
First Name
Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
Yeah, the one in the A-pillar. I think mine stripped but is still there. I need to go look at our A-pillar assembly on the shelf and see how it's attached. Not sure if it's a cage nut or what but the bolt would still spin, just not tighten up. I was able to get it out by prying underneath it
You must be registered for see images attach

This is how my 79 is/was, I recall the donor pieces from an 85 were the same construction.
 

TotalyHucked

Full Access Member
Joined
Feb 24, 2020
Posts
3,671
Reaction score
11,854
Location
Auburn, Georgia
First Name
Zach
Truck Year
1985
Truck Model
Sierra 1500
Engine Size
5.3
Fuuuuu. I'm not cutting my truck open until it's ready for paint, so it'll just live like it is for a while lol
 

Latest posts

Forum statistics

Threads
44,157
Posts
950,592
Members
36,271
Latest member
jstewart7501
Top