Door window glass alignment

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.

Andreas Wickman

Full Access Member
Joined
Dec 19, 2018
Posts
51
Reaction score
45
Location
Sweden
First Name
Andreas
Truck Year
1983
Truck Model
C20
Engine Size
379
You must be registered for see images attach
 

Andreas Wickman

Full Access Member
Joined
Dec 19, 2018
Posts
51
Reaction score
45
Location
Sweden
First Name
Andreas
Truck Year
1983
Truck Model
C20
Engine Size
379
Two holes that can be mixed up. That what happens to me. I used the hole to the left, which positioned the glass guide away from the glass and therefore didn't hold the glass in the slot. Now with the bolt in the right hole, everything works perfect. Thanks a lot again. You made my day!
 

eskimomann209

Full Access Member
Joined
Jan 9, 2019
Posts
1,849
Reaction score
2,005
Location
Modesto
First Name
Marcus
Truck Year
1973
Truck Model
C10
Engine Size
5.3
Since this one is active. I’ll add if no one minds. I did the power glass swap. I didn’t install the sweeps yet. (Fedex failed me yesterday) but when I try to run the glass up the tracks without the rubber channels the glass is crooked. regulator not in right?
this happened with both sides. makes me think I put something in at the wrong time. Maybe that little roller that goes in the track on the door

You must be registered for see images attach
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,709
Reaction score
17,993
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
The glass is thinner on 81+ I believe.

The year they first went to power windows they had thinner glass. 78 I think.
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,709
Reaction score
17,993
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
Looks like the back track is dragging the glass.
 

eskimomann209

Full Access Member
Joined
Jan 9, 2019
Posts
1,849
Reaction score
2,005
Location
Modesto
First Name
Marcus
Truck Year
1973
Truck Model
C10
Engine Size
5.3
Looks like the back track is dragging the glass.
I got it. I guess the door track (horizontal roller one) popped out on both sides
( driver/passenger) That’s what happens when you work in the dark after hours. lol. With a few beers to boot.
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,709
Reaction score
17,993
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
Nothin' wrong with a few beers behind the wheel, as long as you ain't drivin'.
 

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,291
Reaction score
3,335
Location
Kentucky
First Name
David
Truck Year
1986
Truck Model
K10/LM7 5.3/4L60e/np208/3.73/32"
Engine Size
10 yrs Air Force
The glass is thinner on 81+ I believe.
old post but it made me think.....are the windows from say a 79, are exactly the same as 81+ except for the glass thickness? I ask because my windows are slow even with the lmc relay kit. Hauls arse direct to battery but thought I'd ask. If someone had thicker glass in newer tracks (if they are different....dont know) this may explain why they are slow.

Thinking outside the box and thought I'd add.
 

Juggernaut

Full Access Member
Joined
Apr 11, 2021
Posts
212
Reaction score
233
Location
Illinois
First Name
Greg
Truck Year
78
Truck Model
K20
Engine Size
350
My '77 glass runs up and down just fine in my '78 using '84 regulators. It does loose a little speed going through the relays compared to straight to the battery, but not much. It shouldn't be considerably slower. I used some cheap relays I got off Amazon and #8 AWG automotive wire off the engine bay aux terminal to power the relays. Runs just as fast as my '94 C3500. Does your glass run up and down fast in the channels wired straight to the battery?
 

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,291
Reaction score
3,335
Location
Kentucky
First Name
David
Truck Year
1986
Truck Model
K10/LM7 5.3/4L60e/np208/3.73/32"
Engine Size
10 yrs Air Force
My '77 glass runs up and down just fine in my '78 using '84 regulators. It does loose a little speed going through the relays compared to straight to the battery, but not much. It shouldn't be considerably slower. I used some cheap relays I got off Amazon and #8 AWG automotive wire off the engine bay aux terminal to power the relays. Runs just as fast as my '94 C3500. Does your glass run up and down fast in the channels wired straight to the battery?
They do. I ran 14 AWG wire for power.

Don't wanna hi-jack the thread so I'll keep digging. It's gonna be switch, relays, or wiring.
 

bluex

Full Access Member
Joined
May 9, 2013
Posts
1,969
Reaction score
2,565
Location
Spartanburg SC
First Name
Paul
Truck Year
1978
Truck Model
C15
Engine Size
350
old post but it made me think.....are the windows from say a 79, are exactly the same as 81+ except for the glass thickness? I ask because my windows are slow even with the lmc relay kit. Hauls arse direct to battery but thought I'd ask. If someone had thicker glass in newer tracks (if they are different....dont know) this may explain why they are slow.

Thinking outside the box and thought I'd add.
All the replacement glass run kits are 73-80 and 81+. So the glass changed in 81 an not before (imo, I've never measured them) the only real difference is the runs an thicker to make up for the thinner glass. So if you had 81+ runs an a 80 an older glass it would probably be really tight.

I put new runs in mine an they are still hard to roll up (manual windows) even a few years later. It's possible all the aftermarket stuff is slightly tighter on the tolerance than OE stuff was 40+ yrs ago.
 

Latest posts

Forum statistics

Threads
44,075
Posts
948,852
Members
36,145
Latest member
my82blazer
Top