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Old July 2nd, 2009, 05:42 AM   #1
mudbillyredneck
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Arrow Need help ? Polyurethain -VS- Rubber cab mounts ?

As many of you know...I love crewcab fords

I am building my 12V cummins F350 crew this week, and have the body off the frame ....


Hears where I need help


Should I use poly or rubber cab mounts ?

My application is such that I have a solid (94) cab with strong sheetmetal and excelent condition frame mounts...


I will be plowing snow with this truck privately...not comercially , and hauling trailors (compost and hay mostly ) ...it's the country boy in me I guess .






I've heard polyurethain can and will ? couse the sheetmetal cab floor to fatigue and someday the poly my push threw...similer to how bodylifts are somtimes know to do ?????


Since I will be choreing and plowing this new toy...I want the most durable , best thing for the truck in general...as I dont like to do anything twice

* if nothing else post your opinion for Casino cash *

If you dont have time to do it right the first time...how you ever ganna find time to do it a second....




Thanks guys
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Old July 2nd, 2009, 06:33 AM   #2
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I've had the poly mounts on my crewcab for 4-5 years with no problems.
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Old July 2nd, 2009, 04:19 PM   #3
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I've had the poly mounts on my crewcab for 4-5 years with no problems.
Thanks for the info


Any body else want to chime in on this ??
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Old July 2nd, 2009, 04:34 PM   #4
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I have Poly mounts on my ranger, I know it is way lighter then a crew cab f350 but they have been good for the past 2 years with no issues... But I also have a bodylift..
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Old July 2nd, 2009, 06:39 PM   #5
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the flex of rubber will fatigue it also dont ya think? the body moving or deflecting 1/2 an inch then it suddenly stopping from the bolt and washer. its gotta be pretty stressed near the bolt hole. i think either way it will sooner or later fatigue the metal. in michigan i bet it rusts out first. my only complaints about poly are it can squeak sometimes, also it can crack or chip fairly easily. rubber is more forgiving and cheaper. id go poly, jmho.
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Old July 2nd, 2009, 09:19 PM   #6
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the flex of rubber will fatigue it also dont ya think? the body moving or deflecting 1/2 an inch then it suddenly stopping from the bolt and washer. its gotta be pretty stressed near the bolt hole. i think either way it will sooner or later fatigue the metal. in michigan i bet it rusts out first. my only complaints about poly are it can squeak sometimes, also it can crack or chip fairly easily. rubber is more forgiving and cheaper. id go poly, jmho.
Thanks for the insight...never though about the rubber flex issue


More feedback guys..this is great
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Old July 7th, 2009, 06:53 PM   #7
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I need more feedback...getting ready to re-mount body soon

Rubber - VS- poly ???
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