Sliding rear window gasket?

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.

Soundmound

Supporting Member
Supporting Member
Joined
Feb 15, 2022
Posts
1,809
Reaction score
5,465
Location
North Central Washington
First Name
Dave
Truck Year
1984
Truck Model
Scottsdale
Engine Size
305
It's no longer an issue.
You must be registered for see images attach
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,984
Reaction score
9,904
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
It's no longer an issue.
You must be registered for see images attach
He states..”it will be available around September of this year” Um which year ?
when was this written? 2022, 2023 ? He should’ve included the Date. Frustrating !
 

Soundmound

Supporting Member
Supporting Member
Joined
Feb 15, 2022
Posts
1,809
Reaction score
5,465
Location
North Central Washington
First Name
Dave
Truck Year
1984
Truck Model
Scottsdale
Engine Size
305
He states..”it will be available around September of this year” Um which year ?
when was this written? 2022, 2023 ? He should’ve included the Date. Frustrating !
This year. I spoke with Precision a few months ago and the sales guy let it slip when I was lamenting the lack of availability. He said it was in the works I just didn't expect that fast.
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,984
Reaction score
9,904
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
This year. I spoke with Precision a few months ago and the sales guy let it slip when I was lamenting the lack of availability. He said it was in the works I just didn't expect that fast.
Thanks for the info !, I’ll be first in line. Finally they got wise to the demand.
 

Disco

Full Access Member
Joined
Feb 13, 2022
Posts
119
Reaction score
159
Location
Texarkana, TX
First Name
Mike
Truck Year
1978
Truck Model
Big 10
Engine Size
350
I know this is an old thread, but I have a question. My 78 needs the rubber, felts, and latch replaced. I also picked up a slider off an 80s model from a scrap yard. I see rubbers like the one above that state "fits 84-91 OE sliders", so my question is this: Is there a difference between 73-83 rear windows and 84-91?
I'm pretty sure my window is a factory - or at least dealer - option. It looks just like the aluminum ones from earlier in the thread...
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,984
Reaction score
9,904
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
I know this is an old thread, but I have a question. My 78 needs the rubber, felts, and latch replaced. I also picked up a slider off an 80s model from a scrap yard. I see rubbers like the one above that state "fits 84-91 OE sliders", so my question is this: Is there a difference between 73-83 rear windows and 84-91?
I'm pretty sure my window is a factory - or at least dealer - option. It looks just like the aluminum ones from earlier in the thread...
Factory rear sliders have a frame that’s about 1/2” thick and have a larger glass area & require the gasket with the wide channel. (Now sold by Precision Rubber Products). The aftermarket and Dealer installed units have a larger frame (usually aluminum) with a Flange that is the same size as the solid glass rear window and uses the same gasket as the solid glass with a narrow channel. Here’s pics of both. *and as a side note.. I’m sure back in the day, some Dealers installed the factory style sliders when those units were available.
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
 
Last edited:

Disco

Full Access Member
Joined
Feb 13, 2022
Posts
119
Reaction score
159
Location
Texarkana, TX
First Name
Mike
Truck Year
1978
Truck Model
Big 10
Engine Size
350
Factory rear sliders have a frame that’s about 1/2” thick and have a larger glass area & require the gasket with the wide channel. (Now sold by Precision Rubber Products). The aftermarket and Dealer installed units have a larger frame (usually aluminum) with a Flange that is the same size as the solid glass rear window and uses the same gasket as the solid glass with a narrow channel. Here’s pics of both. *and as a side note.. I’m sure back in the day, some Dealers installed the factory style sliders when those units were available.
So the aluminum brightwork window in the Big10 there at the bottom is dealer option style? That looks like what mine has.
 

INSAGENT76

Junior Member
Joined
Aug 29, 2024
Posts
1
Reaction score
0
Location
MISSISSIPPI
First Name
CHRIS
Truck Year
1982
Truck Model
K10
Engine Size
350
Factory rear sliders have a frame that’s about 1/2” thick and have a larger glass area & require the gasket with the wide channel. (Now sold by Precision Rubber Products). The aftermarket and Dealer installed units have a larger frame (usually aluminum) with a Flange that is the same size as the solid glass rear window and uses the same gasket as the solid glass with a narrow channel. Here’s pics of both. *and as a side note.. I’m sure back in the day, some Dealers installed the factory style sliders when those units were available.
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
So what precision part number fits the rear window pictured on the "big 10" truck pictured above?
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,984
Reaction score
9,904
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
So what precision part number fits the rear window pictured on the "big 10" truck pictured above?
WBL 1135
You must be registered for see images attach
 

84GMCSierra

Full Access Member
Joined
Feb 26, 2023
Posts
363
Reaction score
432
Location
Central Arizona
First Name
Paul
Truck Year
1984
Truck Model
C2500
Engine Size
350
I believe Precision has them now. I was also told the original gasket would work but don't know. When I bought an OEM slider a few years ago, I got the gasket with it. Only paid $100 for it and it came off of another 84 so lucked out. Sorry this is a late post.
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,693
Reaction score
6,865
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
I know this is an old thread, but I have a question. My 78 needs the rubber, felts, and latch replaced. I also picked up a slider off an 80s model from a scrap yard. I see rubbers like the one above that state "fits 84-91 OE sliders", so my question is this: Is there a difference between 73-83 rear windows and 84-91?
I'm pretty sure my window is a factory - or at least dealer - option. It looks just like the aluminum ones from earlier in the thread...
You must be registered for see images attach

this is the 84+ factory slider that they made a seal kit for

Precision does NOT have a seal kit for a 1973-1983 at all, i checked. the one there says specifically not for slider factory
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,984
Reaction score
9,904
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
Yes,.. your photo shows a Factory Slider. Notice it doesn’t have the wide aluminum frame like this aftermarket slider.
You must be registered for see images attach
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,984
Reaction score
9,904
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
This is the response from @TotalyHucked…

just to add a note, the back glass opening/back cab panel is the same '73-87. The glass shape and the seals are all the same, the only change is '81-up went to slightly thinner glass to save weight in order to help meet CAFE standards. Even though the later glass is thinner, it's only a MM or so difference, so the gaskets are all the same from '73-87.
 
Last edited:

Latest posts

Forum statistics

Threads
44,075
Posts
948,865
Members
36,146
Latest member
Nuggets40
Top