• Welcome to ClassicBroncos! - You are currently viewing the forums as a GUEST. To take advantage of all the site features, please take a moment to register. It's fast, simple and absolutely free. So please join our community today!
    If you have problems registering or can't log into your account, please contact Admin.

Shimming the body/Hard doors hard to open/close.

PhantomEB

Sr. Member
Joined
May 25, 2004
Messages
453
Loc.
Calgary, Alberta
For the first time since I brought the bronco, 17 years ago,I am going to hard doors.

Now when everything bolted up and Center body mounts loose, I have jacked up the Center by a good 1/2”.

Doors need to be SLAMMED hard which raises them up 3/8” of an inch to have it all line up. Outside door knob won’t work so it’s to the inside to get it to release which then opens and drops the 3/8”. Window ain’t gonna be down all the time so this is all useless.

I already have peeled back the sheet metal that surrounds the striker knob.
 

66broncoCT

Contributor
Full Member
Joined
Feb 6, 2012
Messages
301
Loc.
Torrington, CT
First step is take the striker off the door post. Close the door. Are your lines/door gaps good? The striker can not pull the door into alignment that’s not what it’s designed to do and it will wear out plus cause the latch mechanism to be excessively stiff as you already found out.
 

suckerpunched

Sr. Member
Joined
Aug 24, 2006
Messages
882
also new hinges can add to the fight. Which body mounts did you shim and what shape are the body mount bushings in? do what 66bronco said and take a picture showing allignment
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
48,096
I posted to your thread on NorCal, but will add a bit here too.
The way I see it, shimming the body mounts is to correct the vertical gaps on the leading and trailing edges of the doors ONLY.

To keep the door from rising and falling during the latch process you need to have the latch striker set at the correct height to level the door with the rear bed rail, and do the same with the hinges for the front body. Or, with the hinges the possibility exists that the front fender is not aligned properly from a replacement, so you could conceivably adjust the hinges to keep the door top level with the rear bed rail. Letting the front alignment fall where it may unfortunately.

The falling of the door off the latch is either the latches not set up properly due to the A-pillar not being perfectly aligned, or the hinge pins failing and leaving too much slop.
Either of which can be fixed.

New hinges, or new pins & bushings, will take care of slop.
Remember the factory ones were pretty sloppy too sometimes though, so if yours are not too bad and you're not ready to fix that yet, you can shim the lower hing outward from the A-pillar and raise the back of the door to better line up with the striker that way.

It's a big dance, just like so many other things on vehicles. Unibodies with hard tops are not so bad after all sometimes!

Other things to take into account with door adjustments too, assuming the whole rig has been apart at some point, are the angle of the windshield frame, the relative location front-to-back of the hard top (if applicable) and, especially if an early door, the location inside the door of the window frame.

It's literally five, six or even seven things you have to factor in when installing hard doors.

Paul
 

Rustytruck

Bronco Guru
Joined
Feb 24, 2002
Messages
10,875
Take a framing square and cut off about 1/2" off the outside corner of the square. Now use the square and check the door opening accross the rocker ledge up the face of the rear quater and make it square. Check the same ledge to the face of the fender. Also check the inner bed side to the floor. Got to start off square and plumb. Check that the floor braces are still straight and havent bent by the body mounts.
There is a drawing on a picture with door opening diminsions on this site that can verify what your door openings measure.
 

AC932

Contributor
Full Member
Joined
Sep 17, 2018
Messages
251
As others have said, make sure your latch is in alignment. If you gotta move your door post, you can use a piece of wood on the door post and an 8lb sledgehammer (although if you've got a good gap along the back door edge, then probably don't). Hit the top forward and use a longer piece to move the bottom out from inside the fender well. A smaller hammer can also convince a latch to move a bit more in the right direction.
 

904Bronco

Contributor
Bronco Guru
Joined
Sep 28, 2004
Messages
5,815
Loc.
San Martin, CA
Take a framing square and cut off about 1/2" off the outside corner of the square. Now use the square and check the door opening accross the rocker ledge up the face of the rear quater and make it square. Check the same ledge to the face of the fender. Also check the inner bed side to the floor. Got to start off square and plumb. Check that the floor braces are still straight and havent bent by the body mounts.
There is a drawing on a picture with door opening diminsions on this site that can verify what your door openings measure.

Here you go Les...
 

Attachments

  • BroncoDoorMeasurements_zpse8c0fe72.jpg
    BroncoDoorMeasurements_zpse8c0fe72.jpg
    72.3 KB · Views: 95
Top