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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Lower Radiator Isolators

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Old Jan 18, 2022 | 10:31 AM
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Lower Radiator Isolators

So I have run into a seemingly unobtanium part situation. My 1995 F150 did not have the rubber lower radiator isolators when I pulled out my old plastic-ended radiator. Since I am going with a 3" Aluminum upgraded radiator, I wanted to make sure it wasn't going to break from vibration or wear abnormally from sitting in the steel U ears. The closest thing I have found is on LMC, but they list it for an F250 Diesel. Does anyone know if these are the same for the gas radiators or if there is another source (other than junkyarding and hoping there are some left) for these rubber isolators? Thanks!

its #6 on this diagram at LMC
https://www.lmctruck.com/1980-96-for...and-components
 
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Old Jan 18, 2022 | 12:32 PM
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The part number 43-0929 for "80-84 Gas" would be closer to the right thing IMO.
 
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Old Jan 18, 2022 | 01:10 PM
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Originally Posted by jas88
The part number 43-0929 for "80-84 Gas" would be closer to the right thing IMO.
Unfortunately, the radiator support I have and the specific radiator appear to not be set up for those isolators. If you look at the radiator linked below, it has two "ears" on the lower mount point that would rest in the shaded J channel in the LMC diagram and have straight metal to metal contact if installed without isolating rubber of some kind.

Exact radiator to be installed: https://www.summitracing.com/parts/s...-150/year/1995
 
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Old Jan 23, 2022 | 08:49 AM
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I was able to find a couple pairs at the junkyard, but the listed ones from LMC (either type) are not correct for your normal F150. I may toy with the idea of making a mould and pouring some polyurethane ones though.
 
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Old Jan 23, 2022 | 10:39 AM
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If any constellation, I just changed mine out and it didnt have the rubber there either?
 
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Old Jan 23, 2022 | 10:43 AM
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Originally Posted by torq'ta 5 8
If any constellation, I just changed mine out and it didnt have the rubber there either?
I would be surprised if 1 in 3 actually still had them in the truck. With the age of these trucks it makes sense that they were lost over the years.
 
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Old Jan 23, 2022 | 01:58 PM
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Drop a pic of what you came home with.

Just had mine out & was trying to remember just what they're exactly like, cause I've never seen them spared in the aftermarket.
 
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Old Jan 24, 2022 | 08:30 PM
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Originally Posted by Scndsin
Drop a pic of what you came home with.

Just had mine out & was trying to remember just what they're exactly like, cause I've never seen them spared in the aftermarket.
Sure, here is what they look like, same on both sides of the radiator. Definitely starting to think of making a mould and casting polyurethane sets as no one I have found has anything like this.

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Old Jan 24, 2022 | 08:43 PM
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Wonder how well flex seal liquid, would work
 
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Old Jan 24, 2022 | 09:57 PM
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Originally Posted by torq'ta 5 8
Wonder how well flex seal liquid, would work
not sure how flex seal would cure in that thick of an application. I was looking at using energy suspensions purable polyurethane.

https://www.energysuspensionparts.com/diymmi
 
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Old Jan 25, 2022 | 05:23 AM
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I looked all over for some of these online a few months ago and came up empty. Also had to resort to pulling them from a junk truck. Seems like an odd thing that would fall into obscurity. Even so though, if all that were available were really overpriced aftermarket poly mounts or whatever, I'd still have opted for the junk yard I guess.
 
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Old Jan 25, 2022 | 12:19 PM
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Originally Posted by GNR22
I looked all over for some of these online a few months ago and came up empty. Also had to resort to pulling them from a junk truck. Seems like an odd thing that would fall into obscurity. Even so though, if all that were available were really overpriced aftermarket poly mounts or whatever, I'd still have opted for the junk yard I guess.
Out of curiosity, what do you consider too expensive? Most poly bushing pairs/small sets start around $30...

I was already planning on making some bushings for a different car that are not available anywhere else so if I already had the pour-able polyurethane, its not much more to pour a set or two of these...
 
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Old Jan 25, 2022 | 01:13 PM
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Originally Posted by shadowplane676
Out of curiosity, what do you consider too expensive? Most poly bushing pairs/small sets start around $30...

I was already planning on making some bushings for a different car that are not available anywhere else so if I already had the pour-able polyurethane, its not much more to pour a set or two of these...
If they were available for $40 for the pair of bushings, I would have gone that route and ordered new. Any more than that and I'd have gone to the yard and pulled an old rubber set anyway.
 
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Old Jan 25, 2022 | 01:20 PM
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I've seen some of the guys down in fat fenders & earlier who have poured up bushings with poly for their non-existent suspension parts.
 
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Old Jan 25, 2022 | 01:35 PM
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Originally Posted by Scndsin
I've seen some of the guys down in fat fenders & earlier who have poured up bushings with poly for their non-existent suspension parts.
Its more plausible these days with 3D printing as well. Its what I'm looking at for a few bushings, 3D printed moulds, pourable polyurethane and presto! A part that wasn't available recreated.
 
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