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· Registered
4 Posts
Discussion Starter · #1 ·
just bought my second bronco it’s a 1979 project that was never completed new floor pans are already in I bought 2 new front cab mounts I can’t seem to find the right hardware and bushing for position 1 I have read what d rock has Written about this and now I’m worried the bushing and hardware have previously been removed I have nothing to compare to thank you for any help and guidance

· Super Moderator
33,957 Posts
Yo Blair,
See any differences in these two diagrams. Blurry vision here.

Parts Break-Out Diagram in a 78 w/Nomenclature by Indybronco (Lula Mae)

Parts Break-Out & Locations (& Bolt Sizes) for 94 (other years are similar) w/Nomenclature; "Check out View Z (lower R). It's not totally accurate because it omits the thick spacer, and there should be another washer between the Nut & the Spacer on top of the core support..."
➡ 80-96 similar; F-series cab mounts similar).

The rear bolts (view V) are 7/16"x14(NC) 6.5" long threaded 2.5" with a 5/8" head with large integral washer.
The 6 identical bolts are 7/16"x14(NC) 3.75" long threaded 2.5" with a 5/8" head with small integral washer.
The front bolts (view Z) are M12x1.75 100mm FULLY THREADED w/15mm head & small integral washer.

Note that the necked portion of the upper sleeve (part of the upper absorber) is designed to lock onto the lower sleeve (flared assembly nut) to hold the rubber in place on the frame on the assembly line. But it funnels dirt & water in around the 2 parts & the bolt threads, usually rust-welding them together. So the longer they're soaked with penetrating oil before disassembly, the more likely they are to come apart.

Once the bolt is backed out a few turns, spray more penetrant down into the upper sleeve to rinse the rust off the threads, and use a hammer & drift on the bolt head to separate the sleeves.

The core support mount (views U & Z) is different, and the bolt threads into it from below. It's virtually impossible to separate them, or even to unscrew the bolt. They usually have to be cut apart and replaced.

See also:

. . . . . . .

Source: by Steve

For posterity;
Replacement Info & Sources; "...replaced mine as part of my restoration project over the last year+ . All I've got to say is that it was a ROYAL PITA. To replace the front ones you need to have them all loose so you can raise the body far enough to put the new mounts and associated hardware in. 5 of the 8 were so rusted inside the tube that I couldn't simply soak them as previously mentioned. I ended up using a carbide saw blade, (one with diamond grit along the edge), for a sawzall to cut the tubes and that took forever because you are cutting bolts that are a number 8 hardness. If you are going to replace any, replace them all. Use the polly mounts. Make sure you get the kit for a Bronco and not a F150. The diagram in the LMC Truck shows the wrong poly mount for position 2. That is the poly mount for a F150. In fact the one that goes in that position, including the associated hardware, is the same as position 3. As far as bolts go, the bolt kit from Bronco grave yard is much too long so just go out and get the ones listed in Meisk5's first response. From the LMC Truck catalog you will need the following hardware http://www.lmctruck....ll.aspx?Page=36 6 of #28, 6 of number 31, 2 of number 18, 6 of number 27, ( I didn't use the other numbers as they are the same part number, what I did list skips the hardware they show for position #2 and gets you the correct part). LMC truck has been notified of the diagram error for position 2, which you can see in the second diagram of Miesk5's original post. The Bronco poly kit from Bronco Graveyard http://broncograveya...=body+mount+kit , number 33090 or 33092 has the correct poly bushings including the radiator support bushings. Do not waste your money on their hardware kit as it has bolts that are way too long (part number 33100). Get the hardware from LMC Truck that I previously listed, with the exception of the rear mounts, I went to LOWES and got # 8's from them. I don't know if LMC has the correct length bolts, because by then I had so many useless bolts, I didn't want to risk getting another useless set ..."
Source: by Seabronc @ Body mounts
Read my post for a compilation of tips.

Here's the 1979 Bronco/F Series Electrical & Vacuum Troubleshooting Manual by Ford via member Ziggy⚠ @
1979 Ford Bronco Wiring Manual pictures, videos, and sounds |
It shows Electrical component location, operation, troubleshooting, with wiring and vacuum diagrams.

1979 Ford Bronco Wiring Schematics, Connector Pin-outs, etc by Ranger429 @ 79 wiring schematics

1979 Bronco Brochure @ via Dezo's Garage

Baba Looey's Favorite FSB Links (lots and lots of tech links) including, "how do I get the tailgate glass to...", etc

1979 Ford Bronco vs. Blazer Article by Ford via Indybronco @ 1978 Ford Bronco Bronco vs. Blazer (79) pictures, videos, and sounds |

Ford Shop Manual Diagrams: 1978-1979 Full Size Shop Manuals, partial @ Technical Diagrams Archives
My Tablet takes hours to download, so try the first in this list as long as you have Adobe Acrobat 9 or later installed.
Wiring Manuals & Diagrams Download PDF
This complete manual for the 1972-1979 Ford Bronco Includes Rear Lights Diagram
Motor Manuals & Diagrams Download PDF
This complete manual for the 1972-1979 Ford Bronco Includes Air Cleaner Diagram
Chassis Manuals & Diagrams Download PDF
This complete manual for the 1972-1979 Ford Bronco Includes '78 Brakes Diagram, Gas Tank Setup Diagram
Body Manuals & Diagrams Download PDF This complete manual for the 1972-1979 Ford Bronco Includes; Upper Body Diagram, Front Clip Diagram, heater Ducts Diagram, Tailgate Diagram, Console Diagram, Front Clip Diagram, Grill Setup Diagram, Heater Controls Diagram, Interior Trip Diagram, Rear Sheetmetal Diagram, Tiltwheel Diagram, Tire Rack
Let me know if the downloads are worth the effort.

See Bubba's M-Block Ford V8 Workshop by Dave Resch

Partial Chilton Manual for 1978, 1979, 1980, 1981 Bronco. Scanned by @ Bronco City

For any Bronco questions or to chat about it's planned build, it's better to post each seperately in Noobie Bronco Tech Questions. Flame free zone. This will get more attention and you can build up your post count to get into other sections such as 1978-'79 Bronco Tech that requires 30 posts to view or post) or 1978-'79 Bronco Tech, Bronco and Ford Parts/Accessories (50 posts required to view), etc.

Our Forum FAQs includes for example, How To Create A Signature, How to Use Search, How to Post Pics and more tips!

➡ Try to find time to participate in and Vote in our current Full-Size of the Month Contest & later in the year's, Full-Size of the Year Contest @ Voting
You will get ideas by those competing. And first place Prizes are awarded! A full spread in Bronco Driver Magazine is the top prize, in addition to a years subscription, once the article is submitted. Also, a years worth of premium FSB membership is awarded to the winner.


· Super Moderator
33,957 Posts
Both y look the same
Yo Blair,
We're discussing the radiator core support bushings, correct ?
I'll move this thread to Noobie section for better visibility and more responses.


· Super Moderator
33,957 Posts

· Super Moderator
33,957 Posts
That is very helpful I will be replacing section Y we will also be replacing the cab mount to the floor pan thank you for the help is there anyone building broncos north of Toronto Gta area ?
Look for others in Toronto area at Canada
Some Ontario members from my fading memory are ;
trustyrusty Registered · From southwest ontario canada

ianmurphy Registered · From Ottawa, Canada

Joined Sep 12, 2018

●Chris Czaja Registered · From Northern Ontario Joined Apr 19, 2019 Last seen 1 h ago
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