C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

'74 driver window binding in down position

Thread Tools
 
Search this Thread
 
Old Oct 26, 2025 | 05:52 PM
  #1  
ivancat's Avatar
ivancat
Thread Starter
Heel & Toe
20 Year Member
All Eyes On Me
 
Joined: Feb 2005
Posts: 18
Likes: 0
Default '74 driver window binding in down position

hi, my driver side window sticks in the down position. as it goes up and down, the horizontal sliding track in my pictures scrapes over the motor mount bolts on the back side of the window motor. the sliding track gets hooked under the lower motor mount bolt and then can't come back up. if i pull the motor inward, away from the sliding track, the window goes up and down freely.

is there supposed to be some kind of guard/fender to keep the window bottom away from the motor mount bolts?

i adjusted a fuzzy window guide at the top of the door and that helped a bit, but window still binds in fully down position.

anyone know how to fix this?



Ivan







Reply
Old Oct 27, 2025 | 10:23 AM
  #2  
Zanny1's Avatar
Zanny1
Pro
Photogenic
Liked
Loved
Community Favorite
 
Joined: May 2019
Posts: 552
Likes: 258
From: Fountain Hills (Phoenix) AZ
Default

When I had the door cards off my '75 coupe, one of the guide wheels had fallen off the track and was laying in the bottom of the door. And the track did not scrape the window motor. Perhaps your vertical tracks are set incorrectly and too close to the motor, or have come loos on the bottom mount.
Or the motor is mounted with some type of bushing that extends the motor out towards the outer door skin.
Bottom line - the two items you identified in your pics should have plenty of clearance.
Reply
Old Oct 27, 2025 | 03:08 PM
  #3  
ivancat's Avatar
ivancat
Thread Starter
Heel & Toe
20 Year Member
All Eyes On Me
 
Joined: Feb 2005
Posts: 18
Likes: 0
Default

thanks Zanny! i will look for a loose bottom connection for the vertical tracks! definitely you are correct about there should be more clearance. window was working for years, so makes sense that something came loose, but i haven't changed anything in there--except for constantly fishing the mirror remote out of the door. that thing constantly falls into the door, no matter how firmly i screw it to the inner door panel mount.

guess i should also remove the passenger door panel to compare, since that side works fine.

Reply

Get notified of new replies

To '74 driver window binding in down position





All times are GMT -4. The time now is 09:53 PM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE