another set of broken motor mounts - Ford Bronco Forum
 
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post #1 of 10 (permalink) Old 12-07-2012, 05:17 PM Thread Starter
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Location: lynchburg, va
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Bronco Info: 85 Bronco, 300 straight 6, early carb and dist conversion, 33X10.50 4inch rough country lift
another set of broken motor mounts

Ok guys, here's the problem I'm having with my old girl. I just broke my second set of motor mounts and I'm trying to find a suitable replacement. Either poly or solid. I was doing some mild flexing when this set popped. The first set was Indian Napa brand, the second set were anchor's from Advance. I've been searching the forums and haven't come up with much for the 300. I know I saw some threads that were saying the O'Reileys brand were made in the usa. Anyone running these brands? I've checked my trans mount and its not broken or bad. It's an almost bone stock engine so I wouldn't think the torque would be enough to keep breaking these. The first time I broke the drivers mount so I replaced the pair, second was the passenger mount so again I replaced the pair. I've checked Jeff's website and he only has listings for rubber mounts. I don't mind these but I just don't want to keep dealing with this. Thanks in advance
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post #2 of 10 (permalink) Old 12-07-2012, 06:28 PM
gone fish'n
 
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I could not keep a drivers side mount on my 78 bronco. I finally cut the stud off flat than drilled through the whole mount where the stud was. Then ran a grade 8 bolt all the way through it. Put it on with a lock nut snug but not cranked down. The lock nut will hold it. Never broke that mount again.

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post #3 of 10 (permalink) Old 12-07-2012, 07:30 PM
Never Done
 
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some will also use a chain to secure the motor. I had the same issue back in the day in my old hi-boy. the 300-6 is torquy.

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post #4 of 10 (permalink) Old 12-07-2012, 07:38 PM
my bko ate my money
 
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Bronco Info: 92 Eddie Bauer Bronco 5.0, E4OD,MAF Conv, sixltre tune-up, OBA, on 31x10.50x15s
the chain method works great


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Originally Posted by jopes
11:47 pm: hand pack it on the shaft. it's something you should be good at
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post #5 of 10 (permalink) Old 12-07-2012, 07:52 PM
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Here's an idea: buy FORD mounts.

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post #6 of 10 (permalink) Old 12-07-2012, 11:27 PM
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Bronco Info: 94 Bronco 5.8L Auto
I'm new to the forum, but I know Autofab in So. Cal. makes bulletproof ones using their bushings.

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post #7 of 10 (permalink) Old 12-07-2012, 11:42 PM
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Bronco Info: 94 Bronco 5.8L Auto
Their number is (619) - 562 - 1740 . The P/N for the 300 straight 6 mounts is FT300N .

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post #8 of 10 (permalink) Old 12-08-2012, 02:36 AM
Nothing beets a Fullsize
 
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Bronco Info: 96 Bronco (5.8 DD E4OD), 88 Bronco Mudder (Engineless), 90 F250 (Explorer 5.0 4R70W)
i love my JBG poly mounts. i use toi break mounts every couple of weeks. yet to break these. they jsut need to make one for 300 and then a tranny mount to go with it

anyone know where i can get poly tranny mount other than autofab?


-----96 5.0 E4OD--------------88 5.8 C6--------------96 5.8 E4OD------
---------KIA-------------------Mud/Trail---------------Daily Driver------
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post #9 of 10 (permalink) Old 12-08-2012, 10:56 AM Thread Starter
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Bronco Info: 85 Bronco, 300 straight 6, early carb and dist conversion, 33X10.50 4inch rough country lift
Thanks zimmer, I'm going to give them a call on Monday. If they can't help then ill have to bite the bullet and go with Steve's suggestion. Thanks everyone for your ideas. Im ready to get my girl back on the road.
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post #10 of 10 (permalink) Old 12-10-2012, 01:14 AM
Driving Stuff Henry Built
 
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Quote:
Originally Posted by jopes View Post
I could not keep a drivers side mount on my 78 bronco. I finally cut the stud off flat than drilled through the whole mount where the stud was. Then ran a grade 8 bolt all the way through it. Put it on with a lock nut snug but not cranked down. The lock nut will hold it. Never broke that mount again.
I've used that method with good success on other engines that were hard on mounts. Snug but not cranking the bolt tight allows some movement, but keeps it from pulling apart. It solved the problem for me.

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