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1972 351c motor mounts.

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Anderslober View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Topic: 1972 351c motor mounts.
    Posted: 24-July-2022 at 3:00AM
I got a good look at my motor mounts on my 72/GTS/351c. They are in iffy condition.
Are motor mounts symetrical? I want to buy a pair of new motor mounts at rockauto, but I am not sure about fitment…left/right etc..
Thanks.

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72 RS 351 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 24-July-2022 at 3:47AM
They are different left to right, and symmetrical.

Interesting story; I bought a pair for my first car's 4V build, and one side was wrong in the box. That was from AutoShack, now AutoZone, the mount in the box labeled for the right side, had a left mount in it. I compared the old mounts and went back to the store with the new and old one. They stocked two at the time and both were wrong. I had to drive to another store about ten miles away and got the correct one.

Part sources often mix up parts, so always compare the old and new parts when you get them.
Don
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 7000rpm 351-4V &4R70W
73 Ranchero GT 351C-4V 3.70 gears for sale later.
92 Lincoln Mark VII SE, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 24-July-2022 at 4:28AM
Wow, the choices for brands now is poor, I just looked and didn't recognize any of the common brands available. I saw some eBay listings for a couple of old brands, one being TRW.

It looks like the two mounts are so close to being the same, some brands make one mount they claim fits both sides. One eBay listing stated the mounting holes are 7.0" apart for one side, and 7.375" on the other side.

So the easiest path looks like the RA site and two DEA parts, $8.95 each and seem popular. This part description is for one of those, the left side seems much more rare than the right side mount; DEA / MARMON RIDE CONTROL A2370
Don
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 7000rpm 351-4V &4R70W
73 Ranchero GT 351C-4V 3.70 gears for sale later.
92 Lincoln Mark VII SE, OBDII 347/4R70W
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Anderslober View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Posted: 24-July-2022 at 5:01AM
Exactly my thinking guys. The ads on rockauto say ‘right/left’….those DEA cleveland mounts were the ones I was looking at. So…….2 of those will be ok?….
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 24-July-2022 at 10:35AM
I was looking around to see if anything else was out there besides those on RA. I didn't find much else, and a couple of bad reviews of brands that were claiming one part fit both sides, the holes not lining up. So that DEA brand seemed like the best choice from the limited information available, and RA was the cheapest, Summit just behind.
Don
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 7000rpm 351-4V &4R70W
73 Ranchero GT 351C-4V 3.70 gears for sale later.
92 Lincoln Mark VII SE, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Posted: 26-July-2022 at 3:04AM
Man…I dont get it. Do the rockauto DEA mounts fit or dont they? They say ‘right/left’….but they dont look ‘mirrored’…..
How would you ‘mirror’ , so they fit…..?

Has anybody changed there motor mounts on their 72 GTS? 351cj engine..
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 26-July-2022 at 11:40AM
The location of the frame mount holes is slightly different in distance apart, and also front to back versus the other side. When I had the issue with a new parts store mount, I didn't know until I was trying to put them on the engine, and comparing them to the old ones to figure out which was left and right.

I didn't know which of the old ones were left and right because they are so close to being the same, and I had the old ones off and not marked. But I did notice the new ones both matched one used one. When I had the other correct new one in hand, confirmed, and with the correct box, then I put them on the correct side and they worked fine.

I bet those DEA mounts will work fine, and it's likely they are as good as the quality of other brands. Unless someone posts here soon about other experiences with newer mounts, I'd buy those.
Don
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 7000rpm 351-4V &4R70W
73 Ranchero GT 351C-4V 3.70 gears for sale later.
92 Lincoln Mark VII SE, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Posted: 27-July-2022 at 7:59AM
The left and right motor mounts are unique, as they bolt to the fame and the angle is mirrored side to side.  Over the years we have never got a clear answer on what the correct aftermarket motor mounts are.  One thing I can say, is that any listing that shows they fit left and right is inocorrect.  The mounts are the same for the 302, 351W and 351C (351CJ makes no difference).

Here are the current Rock Auto Listings:


I think any of the 2370 and 2371s are your correct right and left mounts.  If you do order and confirm, please post the results so I can make a sticky post.

Here are a couple of old threads that cover the topic:


Vince

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Post Options Post Options   Thanks (1) Thanks(1)   Quote Big Bird Quote  Post ReplyReply Direct Link To This Post Posted: 28-July-2022 at 6:28AM
Mounts are different left and right. Early (72-some 73) frame dimensions are different (slightly smaller) where the mount straddles the crossmember. 74-79 mounts fit the early frame, early may not fit later frames.
302/351W/351C all use the same mounts. 351M/400 has a different set of mounts, 429/460 yet another set.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Posted: 31-July-2022 at 9:30PM
Is it possible to refurb/re-rubberise the original mounts?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 01-August-2022 at 5:56AM
Originally posted by Anderslober Anderslober wrote:

Is it possible to refurb/re-rubberise the original mounts?




People have done that before using a urethane liquid mixture they bought. It's been years since I read of that, and I think it was on the Corral forum. They did it fully at home and I think it was from a product made for such mounts, trans mounts too etc.
Don
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 7000rpm 351-4V &4R70W
73 Ranchero GT 351C-4V 3.70 gears for sale later.
92 Lincoln Mark VII SE, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Posted: 02-August-2022 at 8:25AM
A picture of the right motor mount..

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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Posted: 02-August-2022 at 12:54PM
Like I posted above, there was lots of discussion on this topic.  In these old threads people did find aftermarket mounts that worked, unfortunately nobody posted the part numbers.  The problem is the listings incorrectly show the same mount is used left and right.  The reality is left and right are different.  

Personally, I'd take a chance on the 2370 and 2371 as they are clearly different parts.  However, you are overseas, so returns and shipping aren't so cheap and you might be out some cash if they don't work.
Vince

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 02-August-2022 at 1:25PM
i think you're probably chasing shadows. the pic of the right side mount, it's a 'clamshell' style mount that holds the engine side captive, it can't go anywhere. yes it can get worn out, dry rot, crumble and spit out the rubber but from here it doesn't look too bad
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 02-August-2022 at 1:27PM
and yes you can reset your old mounts in urethane but be aware they'll be a lot stiffer than stock.

urethane can break stuff, engine blocks, transmission cases, strut rods ....

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Posted: 02-August-2022 at 7:45PM
Not really interested inthe urethane option. Just stock….anyway, I may just buy the 2370/2371 items nd see….
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 1973gts Quote  Post ReplyReply Direct Link To This Post Posted: 08-August-2022 at 1:08PM
Not positive that these are what you are looking for but they are listed as  NOS with part #'s D30Z-6038-C and D30Z-6038-D. They are on ebay right now listed by Stilwell Obsolete for $159.00.  I haven't dealt with a 351 mount before but maybe someone on here can confirm if they are what you are looking for or not.





Dave - 1973 GTS N code
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Compton Quote  Post ReplyReply Direct Link To This Post Posted: 08-August-2022 at 7:05PM
They’re the correct ones…that seller is good to deal with…a little pricey but who isn’t these days…have bought a ton of parts from them…
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Anderslober Quote  Post ReplyReply Direct Link To This Post Posted: 09-August-2022 at 5:52AM
Thanks for the headsup. But, before I have them in hand in Denmark , it will cost me upwards 300bucks. Ouch!
I will take a close look at mine when engine is out…and see….
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 09-August-2022 at 12:49PM
I would spend the $300 for oem over epoxy filled. Solid mounts would wear out their welcome in five minutes.
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