Any tricks to getting your SB doors to close easier?

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.

Edelbrock

Full Access Member
Joined
Mar 28, 2025
Posts
318
Reaction score
306
Location
Earth
First Name
Grumba
Truck Year
1977
Truck Model
K5 Blazer
Engine Size
400
is your door appear aligned with the cab depth wise? if so you can move the striker out if you dont mind the sticking out a bit until it wears a bit
Or you can adjust the flange the weatherstrip is on with a mallet to sit in a bit


The striker as all the way out. I tried about 10 different positions, and center out works the best. I thought about modifying it so that it could sit further out, but I decided against it. I like the idea of using a mallet to move the seal in further, I will try that for sure. I think that's the fix that I was looking for. thanks!
 

Scott91370

Full Access Member
Joined
Apr 2, 2018
Posts
1,067
Reaction score
1,135
Location
Burleson, Tx
First Name
Scott
Truck Year
1985
Truck Model
Sierra1500
Engine Size
350
Door bushings are OK. Plastic is gone, but the strikers are greased. Does the plastic help?

It's the only thing that will help.
I adjusted and adjusted and adjusted for hours. Put a piece of pex on and never slammed the door again.
 

Captain Ron

Junior Member
Joined
Jan 19, 2020
Posts
23
Reaction score
29
Location
Tucson
First Name
Ron
Truck Year
1988
Truck Model
R30
Engine Size
454
For what it's worth I cut a slit down the middle of the Pex to make it simple to install. Just pry it open a little and slip it over. I also put a tiny amount of silicone grease over it. Like Buttah... They'll wear out in a few years - but I have a lifetime supply in my glove compartment for a couple of dollars.
 

backwoodsman

Member
Joined
Feb 22, 2023
Posts
42
Reaction score
49
Location
Idaho
First Name
Dan
Truck Year
1983
Truck Model
GMC Suburban K1500
Engine Size
6.2L diesel
Would rubber hose work? Probably needs to be plastic, no?

I did a couple of mine with PEX. Works great, but you have to remove the striker to get the PEX on, then make sure it's adjusted correctly when you reinstall.

So I did a couple more with chunks cut from an old 1/2" garden hose. Works just as well. It probably won't last as long, but so far it's lasted a couple years and looks like it'll last at least a few more. And no need to remove the striker, just cut a slit to slip it on; I cut it diagonally so it holds on better as the latch hits it.

Edit: It never occurred to me to cut the PEX and slip it on without removing the striker. With that info, I'd use PEX if I had it, but I'd still use the garden hose if it's what I had lying around, rather than having to buy PEX.
 
Last edited:

83Stepper

Full Access Member
Joined
Mar 9, 2025
Posts
92
Reaction score
176
Location
Massachusetts
First Name
Chad
Truck Year
1983
Truck Model
C10
Engine Size
350
1/2" pex or poly tubing works really well as long as the door bushings aren't blown out. Cut a slit down the middle of the tubing to slide it over the striker. Might have to take a little out of it to make it easier to install, but trust the process, it'll work as long as the rest are in good shape.
 

Edelbrock

Full Access Member
Joined
Mar 28, 2025
Posts
318
Reaction score
306
Location
Earth
First Name
Grumba
Truck Year
1977
Truck Model
K5 Blazer
Engine Size
400
I hated the way my doors closed.

As others have said, hours of adjustments with no luck - verses a few minutes posting the issue here and then a few minutes following the advice given - problem solved.

Now I cant believe how well the doors close.

This website should be on the front of vehicle owners manuals.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
32,078
Reaction score
33,207
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
I noticed there was still posting going on in this thread, so I popped on in, out of curiosity.

The "PEX" thread is actually a 'sticky' thread in the paint and body part of the forum. No real searching needed, it's always at the top of the list.

 

Steelbuddha

Full Access Member
Joined
Mar 16, 2024
Posts
56
Reaction score
63
Location
Central North Carolina
First Name
Jonathan
Truck Year
1984
Truck Model
K20 (dump bed)
Engine Size
350
You never know what'll happen when you sit down to look over the weekly gmsquarebody digest while avoiding work. I always assumed the doors on my '84 K20 just suffered from "old truck," and thought maybe it was some kind of air pressure issue. Just for grins, I cut a couple little pieces of 1/2" PEX from the large store on hand, popped them on the strikers, and holy cow! The doors close like a new Cadillac. Thanks a lot, guys, for a zero-expense, low-effort upgrade. Wish everything was this easy.
 

Forum statistics

Threads
45,755
Posts
991,653
Members
38,895
Latest member
Dadstruck
Top